{"title":"Opal Jewellery","description":"\u003cp\u003eAustralian opal jewellery — pendants, rings, earrings, bracelets and cufflinks in sterling silver and 18 karat gold. The largest collection on the site, with over 220 one-of-a-kind pieces. Every stone is graded and cut by me before going to my Sydney jewellers for setting.\u003c\/p\u003e\u003cp\u003eBlack opal from Lightning Ridge and Grawin, boulder opal from the Queensland fields, white and crystal opal from Coober Pedy. Pieces range from everyday silver settings through to investment-grade 18K gold work with diamond accents. The stone always leads the design.\u003c\/p\u003e\u003cp\u003eBacked by my 25+ year personal guarantee. Insured worldwide shipping, presentation packaging on every piece.\u003c\/p\u003e","products":[{"product_id":"opal-doublet-pendant-101","title":"Opal Doublet Pendant – Sterling Silver, Strong Green Pattern","description":"Australian Opal Doublet Pendant Set in Sterling Silver with green strong pattern. Discover the unique beauty of the Australian Outback with this eye-catching pendant. Show off your bold style with this vibrant, sterling silver treasure.","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":15677069164611,"sku":"2608","price":380.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/Op-Db-Pd-101-1-_1.jpg?v=1701755462"},{"product_id":"brooch-a","title":"Australian Opal Doublet Silver Brooch","description":"\u003cp\u003eDiscover the stunning beauty of Australian White Opal with our Doublet \"Butterfly\" brooch set in Sterling Silver. Made by expert craftsman, it features the perfect combination of durability and elegance.\u003c\/p\u003e\n\u003cp\u003eTotal size 37 x 27 mm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":33103653109813,"sku":"Op Db Bro 8","price":680.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/products\/IMG_9560.jpg?v=1602668388"},{"product_id":"opal-boulder-ring-2406","title":"Australian Opal Boulder Silver Ring 2406","description":"\u003cp data-start=\"108\" data-end=\"299\" class=\"\"\u003eHandcrafted sterling silver ring with genuine Australian boulder opal – oval shape, vibrant blue and green tones – unique gemstone jewelry for women, perfect for gifts or everyday wear.\u003c\/p\u003e\n\u003cp data-start=\"108\" data-end=\"299\" class=\"\"\u003eMetal: 925 Sterling Silver\u003cbr\u003eOrigin of Stone: Boulder Opal from Queensland, Australia\u003cbr\u003eRing Size: S 1\/2 (AU), 9 1\/2 (US), 20.75 (EUR)\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42125405487287,"sku":"Op Bld R 2406","price":680.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0688.jpg?v=1744714826"},{"product_id":"opal-ring-123","title":"Australian Opal Boulder Silver Ring 123","description":"\u003cp\u003eAdd a touch of adventure to your style with our Boulder Opal Ring. This stunning ring features a beautiful boulder opal set in a sterling silver band. Make a bold statement and stand out from the crowd with this unique and high-quality piece of jewelry!\u003c\/p\u003e\n\u003cp\u003eMetal: Sterling Silver\u003c\/p\u003e\n\u003cp\u003eOpal: Boulder opal solid stone from Queensland \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSize 8 1\/4\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42133431910583,"sku":"Op Bld R 123","price":335.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0762.jpg?v=1704169228"},{"product_id":"opal-broach","title":"Australian Opal Doublet Silver Brooch Pendant 9","description":"Stunning Opal\u003cstrong\u003e brooch \u003c\/strong\u003eor \u003cstrong\u003enecklace!\u003c\/strong\u003e Featuring a beautiful Australian doublet opal set in sterling silver, its unique design resembles a sleek yacht gliding through the waves. A bold statement piece perfect for those who love to take risks.","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42363253129399,"sku":"Op Db Bro 9","price":780.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_2881.jpg?v=1722660196"},{"product_id":"opal-boulder-pendant-3011","title":"Boulder Opal Pendant – Sterling Silver, 35×16mm, Deep Blue, Semi-Dark","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"−\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eThirty-five millimetres long. That's not a stone you tuck away — at 35×16mm this is the largest piece in the collection, a genuinely bold slab of Queensland ironstone carrying a sweep of blue opal colour across its face. Semi-dark body tone, medium brightness — the blue is deep and settled rather than electric, which is exactly right for a stone this size: it wears with authority rather than demanding your attention at volume. Boulder opal cut to this length follows the natural seam of the deposit, and the result is an elongated, sculptural shape that works beautifully as a statement pendant. Bezel-set in sterling silver on a 45cm rhodium-plated chain. If you've ever wanted to own a piece of Australian opal that genuinely makes a statement, this is it.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Boulder Opal\u003c\/h2\u003e\n\u003cp\u003eBoulder opal forms as veins of precious opal within ironstone matrix in the opal fields of Queensland — primarily Quilpie, Yowah and Winton. Unlike black opal from Lightning Ridge, the opal cannot be separated from its host rock; it's cut as a single solid piece, with the natural brown ironstone remaining as the stone's backing. This gives boulder opal its distinctive look — vivid colour against rich earth tones — and also makes it physically more durable than other opals, since the ironstone host is harder than the opal layer it carries.\u003c\/p\u003e\n\u003cp\u003eEach boulder opal is shaped by the natural geometry of the seam, so freeform and irregular shapes are common. The dark ironstone backing acts as a natural backdrop that intensifies the colour play above it — similar to how the dark body tone of a black opal works, but achieved by geology rather than gemmology.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Boulder Opal (natural, untreated, ironstone matrix)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 35×16mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Semi-dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Queensland, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations. Boulder opal is more robust than other opal varieties thanks to its ironstone backing, but the precious opal layer still benefits from gentle treatment.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, natural boulder opal from Queensland. The opal and the ironstone backing are one piece, formed together in the ground. Not a doublet, not a triplet, not synthetic.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhy is there ironstone on the back of the stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opal naturally forms as veins of opal within ironstone matrix. The opal can't be separated from its host rock without destroying the stone, so it's cut and polished as one piece. The ironstone backing is part of the natural stone — and it makes boulder opals more durable than other opal varieties.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhere does boulder opal come from?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eAlmost exclusively from the opal fields of central and south-west Queensland — Quilpie, Yowah, and Winton are the major producers. Joseph sources direct from these fields.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42651136262327,"sku":"3011","price":890.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1057.1.jpg?v=1773819917"},{"product_id":"opal-boulder-pendant-3004","title":"Boulder Opal Pendant – Sterling Silver, 29×20mm, Dark Body, Broad Blue Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"−\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eAt 29×20mm this is a substantial stone — large enough that the broad blue colour fills the pendant with real presence on the neck. The opal rolls out a wide, sweeping flash of blue across a dark body tone, the kind of colour that shifts as you move and catches light from across a room. Set in a bezel of sterling silver with a 45cm rhodium-plated chain, it sits confidently at the collarbone — a piece you wear when you want to be noticed, not a piece that disappears into the background.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Boulder Opal\u003c\/h2\u003e\n\u003cp\u003eBoulder opal forms as veins of precious opal within ironstone matrix in the opal fields of Queensland — primarily Quilpie, Yowah and Winton. Unlike black opal from Lightning Ridge, the opal cannot be separated from its host rock; it's cut as a single solid piece, with the natural brown ironstone remaining as the stone's backing. This gives boulder opal its distinctive look — vivid colour against rich earth tones — and also makes it physically more durable than other opals, since the ironstone host is harder than the opal layer it carries.\u003c\/p\u003e\n\u003cp\u003eEach boulder opal is shaped by the natural geometry of the seam, so freeform and irregular shapes are common. The dark ironstone backing acts as a natural backdrop that intensifies the colour play above it — similar to how the dark body tone of a black opal works, but achieved by geology rather than gemmology.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Boulder Opal (natural, untreated, ironstone matrix)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 29×20mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Broadflash\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Queensland, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations. Boulder opal is more robust than other opal varieties thanks to its ironstone backing, but the precious opal layer still benefits from gentle treatment.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, natural boulder opal from Queensland. The opal and the ironstone backing are one piece, formed together in the ground. Not a doublet, not a triplet, not synthetic.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhy is there ironstone on the back of the stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opal naturally forms as veins of opal within ironstone matrix. The opal can't be separated from its host rock without destroying the stone, so it's cut and polished as one piece. The ironstone backing is part of the natural stone — and it makes boulder opals more durable than other opal varieties.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhere does boulder opal come from?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eAlmost exclusively from the opal fields of central and south-west Queensland — Quilpie, Yowah, and Winton are the major producers. Joseph sources direct from these fields.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42651196948663,"sku":"3004","price":850.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1058.1.jpg?v=1773822028"},{"product_id":"opal-gold-pendant-1065","title":"Australian Boulder Opal 18kt Gold Pendant 2065","description":"\u003cp\u003eCrafted from genuine 18 karat gold, the Opal Gold Pendant boasts a gorgeous Australian Boulder opal, elevating any jewelry collection with an air of refinement. Its striking color and unique charm make it an esteemed and valuable accessory.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMaterial: 18 Karat Yellow Gold\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSize: small\u003cbr\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43599490318519,"sku":"Op Bld Pd 2065","price":1180.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1065.1.jpg?v=1727265385"},{"product_id":"australian-opal-boulder-silver-pendant-3010","title":"Boulder Opal Pendant – Sterling Silver, 13×11mm, Light Body, Bright Red Pinfire","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"−\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA 13×11mm stone with a light body tone and bright pinfire red — thousands of tiny points of colour scattered across the face of the opal like sparks frozen in the act of falling. Pinfire is one of the classic opal patterns; on a light-body stone the effect is especially lively, each pinpoint catching the light independently as the pendant moves. The dominant red gives the stone warmth and rarity — red is the least common colour in the opal spectrum. Set in a bezel of sterling silver on a 45cm rhodium-plated chain.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Boulder Opal\u003c\/h2\u003e\n\u003cp\u003eBoulder opal forms as veins of precious opal within ironstone matrix in the opal fields of Queensland — primarily Quilpie, Yowah and Winton. Unlike black opal from Lightning Ridge, the opal cannot be separated from its host rock; it's cut as a single solid piece, with the natural brown ironstone remaining as the stone's backing. This gives boulder opal its distinctive look — vivid colour against rich earth tones — and also makes it physically more durable than other opals, since the ironstone host is harder than the opal layer it carries.\u003c\/p\u003e\n\u003cp\u003eEach boulder opal is shaped by the natural geometry of the seam, so freeform and irregular shapes are common. The dark ironstone backing acts as a natural backdrop that intensifies the colour play above it — similar to how the dark body tone of a black opal works, but achieved by geology rather than gemmology.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Boulder Opal (natural, untreated, ironstone matrix)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 13×11mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant red\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Light\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Pinfire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Queensland, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations. Boulder opal is more robust than other opal varieties thanks to its ironstone backing, but the precious opal layer still benefits from gentle treatment.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, natural boulder opal from Queensland. The opal and the ironstone backing are one piece, formed together in the ground. Not a doublet, not a triplet, not synthetic.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhy is there ironstone on the back of the stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opal naturally forms as veins of opal within ironstone matrix. The opal can't be separated from its host rock without destroying the stone, so it's cut and polished as one piece. The ironstone backing is part of the natural stone — and it makes boulder opals more durable than other opal varieties.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhere does boulder opal come from?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eAlmost exclusively from the opal fields of central and south-west Queensland — Quilpie, Yowah, and Winton are the major producers. Joseph sources direct from these fields.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44055832494263,"sku":"3010","price":690.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/3.2.jpg?v=1733872013"},{"product_id":"australian-boulder-opal-gold-pendant-2072","title":"Australian Boulder Opal 18kt Gold Pendant 2072","description":"\u003cp data-start=\"572\" data-end=\"1050\" class=\"\"\u003eThis elegant 18 karat gold pendant showcases two vibrant boulder opals sourced from Queensland, Australia—renowned for producing some of the world’s most brilliant opals. The upper opal is slender and elongated, while the lower one is a bold triangular shape, both exhibiting intense flashes of green and blue with hints of red under light. The stones are set in a rich yellow gold bezel, enhancing their natural beauty and providing a secure, modern setting.\u003c\/p\u003e\n\u003cp data-start=\"1052\" data-end=\"1274\" class=\"\"\u003eThe dynamic vertical arrangement gives this piece a sleek and contemporary silhouette, making it a stunning accent for both casual and formal wear. A true celebration of natural Australian opals, crafted in luxurious gold.\u003c\/p\u003e\n\u003cp data-start=\"136\" data-end=\"159\" class=\"\"\u003e\u003cstrong data-start=\"136\" data-end=\"159\"\u003ePendant Description\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"161\" data-end=\"570\" class=\"\"\u003e\u003cstrong data-start=\"161\" data-end=\"170\"\u003e\u003cem\u003eItem\u003c\/em\u003e:\u003c\/strong\u003e 18 Karat Gold Pendant \u003cbr data-start=\"265\" data-end=\"268\"\u003e\u003cem\u003e\u003cstrong data-start=\"268\" data-end=\"279\"\u003eStones:\u003c\/strong\u003e\u003c\/em\u003e Two Natural solid Boulder Opals\u003cbr data-start=\"305\" data-end=\"308\"\u003e\u003cem\u003e\u003cstrong data-start=\"308\" data-end=\"328\"\u003eOrigin of Opals:\u003c\/strong\u003e\u003c\/em\u003e Queensland, Australia\u003cbr data-start=\"400\" data-end=\"403\"\u003e\u003cem\u003e\u003cstrong data-start=\"403\" data-end=\"414\"\u003eDesign:\u003c\/strong\u003e\u003c\/em\u003e Dual-stone vertical drop pendant\u003cbr data-start=\"483\" data-end=\"486\"\u003e\u003cem\u003e\u003cstrong data-start=\"486\" data-end=\"505\"\u003ePendant Length:\u003c\/strong\u003e\u003c\/em\u003e Approx. 18mm\u003cbr data-start=\"518\" data-end=\"521\"\u003e\u003cem\u003e\u003cstrong data-start=\"521\" data-end=\"532\"\u003eWeight:\u003c\/strong\u003e \u003c\/em\u003e1.02 carat\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44363647844535,"sku":"Op Bld Pd 2072","price":1550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlrPd2072.6.jpg?v=1738389798"},{"product_id":"australian-boulder-opal-silver-cufflinks-3","title":"Australian Boulder Opal Silver Cufflinks","description":"\u003cp\u003eExperience the beauty of Australia with these Sterling Silver Cufflinks featuring a large split pair of Boulder Opals, sourced from western Queensland. These exquisite cufflinks make the perfect gift for any occasion.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44401793826999,"sku":"1601","price":950.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldCfl3.1_1.jpg?v=1777527308"},{"product_id":"australian-white-opal-silver-bracelet-11","title":"Australian White Opal Silver Bracelet 1801","description":"\u003cp\u003eTimeless elegance of opal with White Opal Bracelet. These exquisite gemstones are beautifully set in high-quality sterling silver, resulting in a bold and luxurious piece. Let the shimmering opal stones add a touch of enchantment to your look.\u003c\/p\u003e\n\u003cp\u003eLength: 185mm = 7.28inch \u003cbr\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44576062570679,"sku":"Op Wht Bra 1801","price":450.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpWhtBra11.4.jpg?v=1741411448"},{"product_id":"australian-opal-doublet-silver-pendant-234","title":"Opal Doublet Pendant – Sterling Silver, 27×12mm, Red \u0026 Blue Multicolour","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA gem-quality doublet — Joseph's own assessment, and he doesn't use that phrase lightly. This 27 × 12 mm stone carries dominant red fire with strong secondary blue rolling across a multicolour field, the colour bright and unambiguous even indoors. The opal is bezel-set in sterling silver and hangs on a solid sterling silver chain at 45 cm — long enough to rest just at the collarbone, short enough to sit close rather than drift. At $1,850 this is one of the more significant pieces in the doublet range, priced for what it actually is: a large, vivid, hand-selected stone that Joseph pulled from the fields himself.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 27 × 12 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant red with secondary blue, multicolour field\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Multicolour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Solid sterling silver, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — both the pendant setting and the chain are solid sterling silver. No plating on this piece.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44887712235703,"sku":"234","price":1950.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd234.5.jpg?v=1745996608"},{"product_id":"australian-opal-doublet-silver-pendant-235","title":"Opal Doublet Pendant – Sterling Silver, 14×19mm, Bright Red \u0026 Blue-Green","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eAnother gem-quality piece from Joseph's hand — a 14 × 19 mm doublet with dominant red fire and strong secondary blue-green moving across a multicolour field, the colour bright and clear. At 19 mm tall this is a stone that reads well from a distance; the proportions sit closer to a portrait shape, which gives it a presence on the neckline that narrower stones don't have. Bezel-set in sterling silver and hung on a solid sterling silver chain at 45 cm, it sits at the collarbone. A serious piece at a serious price — reflecting what Joseph saw in the stone when he pulled it from the field.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 14 × 19 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant red with secondary blue-green, multicolour field\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Multicolour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Solid sterling silver, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — both the pendant setting and the chain are solid sterling silver. No plating on this piece.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44887784358071,"sku":"235","price":1750.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd235.1.jpg?v=1745996373"},{"product_id":"australian-opal-black-gold-ring-714","title":"Australian Black Opal Gold Ring 714","description":"\u003cp data-start=\"91\" data-end=\"557\" class=\"\"\u003eThis exquisite 7-carat Black Opal, sourced from the renowned Lightning Ridge in Australia, takes center stage in a luxurious 18 karat yellow gold setting. Complemented by delicate white gold detailing and diamonds, this ring is a true masterpiece of design and craftsmanship. The opal's captivating hues of blue and green shimmer with every movement, creating an iridescent play of color that draws the eye.\u003c\/p\u003e\n\u003cp data-start=\"559\" data-end=\"705\" class=\"\"\u003eA perfect blend of elegance and rarity, this stunning ring is for those who seek a one-of-a-kind treasure that radiates beauty and sophistication.\u003c\/p\u003e\n\u003cp data-start=\"707\" data-end=\"872\" class=\"\"\u003e\u003cstrong data-start=\"707\" data-end=\"717\"\u003eMetal:\u003c\/strong\u003e 18 Karat Yellow Gold with White Gold Details\u003cbr data-start=\"762\" data-end=\"765\"\u003e\u003cstrong data-start=\"765\" data-end=\"782\"\u003eStone Origin:\u003c\/strong\u003e Black Opal from Lightning Ridge, Australia\u003cbr data-start=\"825\" data-end=\"828\"\u003e\u003cstrong data-start=\"828\" data-end=\"842\"\u003eRing Size:\u003c\/strong\u003e N (AU) \/ 6¾ (US) \/ 13.75 (EU)\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44907328012471,"sku":"Op Blk R 714","price":15500.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkR714.1.jpg?v=1746863345"},{"product_id":"australian-black-opal-18k-gold-pendant-2099","title":"Black Opal Pendant – 18K Gold, 2.96ct, Semi-Dark, Green Mixed Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA 2.96ct solid Australian black opal with a semi-dark body tone and a mixed flash pattern — dominant green shifting through the stone as the light moves across it. Joseph set this one in a close-fitting bezel of 18K yellow gold that cups the stone cleanly and lets the colour do the talking. The polished surface is smooth and catches light readily, so the flash reads well in everything from indoor lamplight to daylight. On a 45cm gold-plated chain, it sits at collarbone height — noticeable without being heavy.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Black Opal\u003c\/h2\u003e\n\u003cp\u003eBlack opal is the rarest and most sought-after variety of Australian opal, mined almost exclusively from Lightning Ridge in New South Wales. Its dark body tone — from dark grey to jet black — creates a dramatic backdrop that intensifies the stone's natural play-of-colour, producing vivid flashes that appear to glow from within. Black opal with strong fire is particularly prized by collectors and is considered among the most valuable gemstones in the world.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Black Opal (natural, untreated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 2.96ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green dominant, mixed flash\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Semi-dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Mixed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Polished\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated black opal from Lightning Ridge, New South Wales. Not a doublet, not a triplet, not synthetic. One stone, natural colour.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 18K gold or plated?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is solid 18K yellow gold. The chain is 18K yellow gold-plated — a standard pairing that keeps the piece accessible without compromising the setting. A solid 18K chain upgrade is available on request.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44974373666999,"sku":"2099","price":3650.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_3499.jpg?v=1748953587"},{"product_id":"australian-black-opal-18k-gold-pendant-2014","title":"Black Opal Pendant – 18K Gold, Crystal Body, Mixed Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA solid Australian black opal with a crystal body tone — translucent base, bright mixed flash that glows from within the stone rather than flashing off a dark backdrop. Joseph has set it in a delicate claw\/prong mount of 18K yellow gold that leaves the stone open and lets light pass through it from every angle. On a 45cm gold-plated chain, it sits lightly at the collarbone — a piece that rewards being worn in good light, where the colour shifts with every movement.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Black Opal\u003c\/h2\u003e\n\u003cp\u003eBlack opal is the rarest and most sought-after variety of Australian opal, mined almost exclusively from Lightning Ridge in New South Wales. Its dark body tone — from dark grey to jet black — creates a dramatic backdrop that intensifies the stone's natural play-of-colour, producing vivid flashes that appear to glow from within. Black opal with strong fire is particularly prized by collectors and is considered among the most valuable gemstones in the world.\u003c\/p\u003e\n\u003cp\u003eCrystal and light-body black opals sit at the lighter end of the body-tone scale. Their base is translucent rather than opaque, so colour appears to glow from inside the stone rather than flashing off a dark background. This gives them a softer, more ethereal quality — different from a dark-body stone, but prized by collectors for exactly that reason. Both ends of the scale are valued; the stone's brightness and pattern quality matter more than body tone alone.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Black Opal (natural, untreated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Mixed flash\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Crystal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Mixed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Claw\/prong, 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Polished\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated black opal from Lightning Ridge, New South Wales. Not a doublet, not a triplet, not synthetic. One stone, natural colour.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 18K gold or plated?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is solid 18K yellow gold. The chain is 18K yellow gold-plated — a standard pairing that keeps the piece accessible without compromising the setting. A solid 18K chain upgrade is available on request.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eHow should I store and clean it?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eStore in a soft pouch, clean gently with a slightly damp cloth. Avoid ultrasonic cleaners and harsh chemicals. See \"Caring for Your Opal\" above for the full routine.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does crystal body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eCrystal body tone means the opal's base is translucent rather than dark opaque. Light passes through it, so colour glows from within the stone — a softer, luminous effect compared to a dark-body opal's more dramatic flash. It's a different character, not a lesser one; collectors prize both.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45295269281975,"sku":"2014","price":770.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2101.5.jpg?v=1758779999"},{"product_id":"australian-opal-doublet-silver-pendant-240","title":"Opal Doublet Pendant – Sterling Silver, Red \u0026 Blue Multicolour","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA 12 × 7 mm Australian opal doublet carrying dominant red and secondary blue — vivid colour in a compact stone. Bright-graded, which means the colour reads clearly in everyday lighting, not just under a jeweller's lamp. The stone is bezel-set in sterling silver and hangs on a rhodium-plated chain at 45 cm, sitting at the collarbone. Compact dimensions make this an everyday piece — present enough to notice, easy enough to wear without thinking about it.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 12 × 7 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant red with secondary blue, multicolour field\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Multicolour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45399139090615,"sku":"240","price":290.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd1.1.jpg?v=1762254123"},{"product_id":"australian-opal-doublet-silver-pendant-412","title":"Opal Doublet Pendant – Sterling Silver, 8×13mm, Green Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eAn 8 × 13 mm Australian opal doublet with dominant green colour that flashes across the face of the stone — not pinned to one spot, but moving. Medium brightness: vivid under direct light, present and alive in ambient conditions. Bezel-set in sterling silver and hung on a rhodium-plated chain. Green opal with this kind of sweep across the surface is harder to find than people expect — most green stones concentrate the colour in patches rather than spreading it. This one spreads it.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8 × 13 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant green, colour visible across the surface\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45417489924279,"sku":"412","price":350.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd412.4.jpg?v=1762520419"},{"product_id":"australian-black-opal-gold-earrings-1031","title":"Australian Boulder Opal 18K Gold Earrings 1031","description":"\u003cp\u003eThis elegant pair of 18K yellow gold earrings showcases stunning Boulder Opals from Queensland, radiating a mesmerizing blue-green hue. Each uniquely free-shaped opal is beautifully complemented by a refined setting and a small diamond accent at the top, adding a touch of sophistication and timeless charm to the design.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e18 Karat gold \u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eBoulder opal Queensland \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eWeight: 10.46ct\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45439325143223,"sku":"Op Blk Err 1031","price":4750.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldErr10311.3.jpg?v=1762929082"},{"product_id":"australian-opal-boulder-silver-bracelet-52","title":"Australian Opal Boulder Silver Bracelet 52","description":"\u003cp\u003eCrafted with four genuine boulder opals from Western Queensland, Australia, this bracelet captures the natural beauty of the outback. Each opal, set in polished silver, displays its own shape and color, making this bracelet a truly distinctive accessory.\u003c\/p\u003e\n\u003cp\u003eLength: 18 cm with 2 cm extension  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45441405976759,"sku":"Op Bld Bra 52","price":950.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldBra52.2.jpg?v=1763003563"},{"product_id":"australian-black-opal-18k-gold-pendant-2105","title":"Black Opal Pendant – 18K Gold, Bezel-Set, Green Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA solid Australian black opal with a dominant green play-of-colour, set by Joseph in a close bezel of 18K yellow gold. The polished surface sits flush in the mount, protected on all sides by the gold rim — a practical choice for a stone you'll wear rather than store. Green is one of the most sought-after colours in Australian opal, and this stone delivers it cleanly. On a 45cm gold-plated chain, it wears as an everyday piece with genuine gemological credentials behind it.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Black Opal\u003c\/h2\u003e\n\u003cp\u003eBlack opal is the rarest and most sought-after variety of Australian opal, mined almost exclusively from Lightning Ridge in New South Wales. Its dark body tone — from dark grey to jet black — creates a dramatic backdrop that intensifies the stone's natural play-of-colour, producing vivid flashes that appear to glow from within. Black opal with strong fire is particularly prized by collectors and is considered among the most valuable gemstones in the world.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Black Opal (natural, untreated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green dominant\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Polished\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated black opal from Lightning Ridge, New South Wales. Not a doublet, not a triplet, not synthetic. One stone, natural colour.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 18K gold or plated?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is solid 18K yellow gold. The chain is 18K yellow gold-plated — a standard pairing that keeps the piece accessible without compromising the setting. A solid 18K chain upgrade is available on request.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eHow should I store and clean it?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eStore in a soft pouch, clean gently with a slightly damp cloth. Avoid ultrasonic cleaners and harsh chemicals. See \"Caring for Your Opal\" above for the full routine.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45446284476599,"sku":"2105","price":2650.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2105.2.jpg?v=1763088491"},{"product_id":"australian-black-opal-18k-gold-pendant-2106","title":"Black Opal Pendant – 18K Gold, Rolling Flash, Green","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA solid Australian black opal with a rolling flash pattern — broad, sweeping colour that travels across the face of the stone as the viewing angle changes, rather than sitting fixed in one spot. The dominant colour is green, deep and clean, and it moves. Joseph has set this one in a bezel of 18K yellow gold: the gold rim follows the stone's outline, securing it fully and giving the piece a solid, finished look. On a 45cm gold-plated chain it hangs at the collarbone. Rolling flash is one of the more dynamic patterns in opal — it rewards being worn, not kept in a drawer.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Black Opal\u003c\/h2\u003e\n\u003cp\u003eBlack opal is the rarest and most sought-after variety of Australian opal, mined almost exclusively from Lightning Ridge in New South Wales. Its dark body tone — from dark grey to jet black — creates a dramatic backdrop that intensifies the stone's natural play-of-colour, producing vivid flashes that appear to glow from within. Black opal with strong fire is particularly prized by collectors and is considered among the most valuable gemstones in the world.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Black Opal (natural, untreated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green dominant, rolling flash\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Rolling Flash\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Polished\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated black opal from Lightning Ridge, New South Wales. Not a doublet, not a triplet, not synthetic. One stone, natural colour.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 18K gold or plated?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is solid 18K yellow gold. The chain is 18K yellow gold-plated — a standard pairing that keeps the piece accessible without compromising the setting. A solid 18K chain upgrade is available on request.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eHow should I store and clean it?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eStore in a soft pouch, clean gently with a slightly damp cloth. Avoid ultrasonic cleaners and harsh chemicals. See \"Caring for Your Opal\" above for the full routine.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat is a rolling flash pattern?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eRolling flash is a pattern where broad sheets of colour sweep across the stone as you tilt it, rather than sitting in a fixed position. It gives the opal a sense of movement — the stone looks different from every angle and every light source. It's one of the more dynamic patterns in Australian opal and is particularly well suited to pendants, where natural movement while wearing it puts the pattern on constant display.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45446387859639,"sku":"2106","price":2350.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2106.4.jpg?v=1763095358"},{"product_id":"australian-opal-doublet-silver-pendant-413","title":"Australian Opal Doublet Silver Pendant 2620","description":"\u003cp\u003eThis silver pendant showcases a striking multi-coloured Australian opal doublet, bringing a vivid pop of colour to any look. It’s an ideal piece for anyone wanting to express their individuality with a touch of brilliance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45460389462199,"sku":"Op Db Pd 2620","price":325.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd413.1.jpg?v=1763534074"},{"product_id":"australian-opal-doublet-silver-pendant-2628","title":"Opal Doublet Pendant – Sterling Silver, 14×10mm, Red \u0026 Blue Multicolour","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA 14 × 10 mm Australian opal doublet with dominant red and a cool bluish secondary — the two colours shifting against each other as the light moves. It's a multicolour stone: the red catches first and holds attention, then the blue-toned secondary moves underneath it. Bezel-set in sterling silver and hung on a rhodium-plated chain at 45 cm, sitting at the collarbone. The 14 mm width gives the stone enough presence to wear as a centrepiece without being oversized.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 14 × 10 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant red with secondary blue tones, multicolour field\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Multicolour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45473149419703,"sku":"2628","price":450.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd414.2.jpg?v=1763985587"},{"product_id":"australian-opal-doublet-silver-pendant-2623","title":"Opal Doublet Pendant – Sterling Silver, 15×18mm, Heart Shape","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eJoseph called it out himself: heart shape. At 15 × 18 mm this is a generously sized stone, and the heart cut is not a marketing shape — it's how the opal came. Joseph cuts to the stone, not to a template, and when the natural form of the material leads to a heart, you let it. Bezel-set in sterling silver and hung on a rhodium-plated chain at 45 cm, sitting at the collarbone. A piece with an obvious gift dimension — the kind of thing that arrives in a box and needs no explanation.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 15 × 18 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Heart\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45476727062711,"sku":"2623","price":480.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd415.5.jpg?v=1764137419"},{"product_id":"australian-opal-doublet-silver-pendant-418","title":"Opal Doublet Pendant – Sterling Silver, 23×11mm, Bright Pinfire, Red","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA 23 × 11 mm Australian opal doublet with bright pinfire pattern — hundreds of tiny individual points of colour distributed across the stone like a field of lit stars, dominant red with secondary green and blue shifting between them. Pinfire is one of the rarer pattern types: it requires the silica spheres in the opal to be packed at exactly the right spacing to diffract light into those small, concentrated dots rather than broad sweeps. Under direct light this stone will fire red across almost the entire face, with the green and blue flashing between the points. Bezel-set in sterling silver, hung on a rhodium-plated chain at 45 cm. At $780 this is a mid-tier piece with an above-average stone — the pattern justifies the step up from the standard multicolour range.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 23 × 11 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant red with secondary green and blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Pinfire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45506608496823,"sku":"418","price":880.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd174.1.jpg?v=1765180369"},{"product_id":"australian-opal-doublet-silver-pendant-2630","title":"Opal Doublet Pendant – Sterling Silver, 20×8mm, Dominant Red with Blue Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\u003cp\u003eThis pendant is built around a 16×10mm Australian opal doublet that delivers a punchy sweep of red with blue shifting underneath — the kind of colour that moves as you do. Bezel-set in sterling silver, the opal sits low and clean against the setting, which makes it a piece that works as well with a casual shirt as it does dressed up. It hangs on a 45cm rhodium-plated chain. Medium brightness that reads strongly in any decent light.\u003c\/p\u003e\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 20×8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant red with secondary blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling silver bezel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45554308219063,"sku":"2630","price":370.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd420.1.jpg?v=1766407398"},{"product_id":"australian-opal-doublet-silver-pendant-2627","title":"Opal Doublet Pendant – Sterling Silver, 14×9mm, Bright Green Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA 14×9mm Australian opal doublet with a bright, clean flash of green — the kind of colour that catches light across a room. At this brightness, the opal reads with real presence even in low light. Bezel-set in sterling silver with a 45cm rhodium-plated chain. Compact dimensions make it a versatile everyday piece that still turns heads up close.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 14×9mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant green\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling silver bezel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45560894816439,"sku":"2627","price":440.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd421.3.jpg?v=1766487715"},{"product_id":"australian-opal-doublet-silver-pendant-2624","title":"Opal Doublet Pendant – Sterling Silver, 7×5mm, Delicate Green \u0026 Blue","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eAt 7×5mm, this is a small stone with a real personality — a delicate Australian opal doublet showing green with a thread of blue shifting through it as the light changes. The tiny footprint is the point: bezel-set in sterling silver, it sits close and light against the neck on a 45cm rhodium-plated chain, easy to forget you're wearing it until it catches someone's eye. A proper everyday piece for someone who wants genuine Australian opal without anything fussy about it. This is also the most accessible price in the collection — real Australian opal, scaled for daily life.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 7×5mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant green with secondary blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling silver bezel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45560895340727,"sku":"2624","price":225.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd423.1.jpg?v=1766489490"},{"product_id":"australian-opal-doublet-silver-pendant-2621","title":"Opal Doublet Pendant – Sterling Silver, 13×10mm, Bright Green \u0026 Red Multicolour","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\u003cp\u003eA 15×11 mm Australian opal doublet with a multicolored display — green dominates, with red moving through underneath it as the stone shifts in the light. At bright, the color reads strongly from distance and has real snap to it. Bezel-set in sterling silver, 45cm rhodium-plated chain. The near-square proportion gives this stone a good face and makes it a solid centerpiece pendant.\u003c\/p\u003e\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 13×10mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Multicolored — dominant green with secondary red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Multicolored\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling silver bezel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45560923652279,"sku":"2621","price":490.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd422.1_3449dcac-9301-42d2-8825-463573452562.jpg?v=1766490077"},{"product_id":"australian-opal-doublet-silver-pendant-2626","title":"Opal Doublet Pendant – Sterling Silver, 12×15mm, Green Broadflash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eThis 12×15mm Australian opal doublet is a broadflash stone — rather than the scattered pinfire dots you see in some opals, the colour here moves in broad, sweeping sheets of green that roll across the face of the stone as it catches the light. It's a commanding pattern that suits the generous size of this piece. Bezel-set in sterling silver with a 45cm rhodium-plated chain. At 440, this is the top of the batch — the size, pattern and presence justify it.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 12×15mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant green\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Broadflash — broad sweeping sheets of colour rather than small points\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling silver bezel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45560927223991,"sku":"2626","price":550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd424.3.jpg?v=1766490873"},{"product_id":"australian-opal-doublet-silver-pendant-2631","title":"Opal Doublet Pendant – Sterling Silver, 8×13mm, Triangle Shape, Green \u0026 Blue","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eJoseph doesn't often cut a triangle. This 8×13mm Australian opal doublet is an unusual shape — a deliberate choice made when the stone itself pointed in that direction. Green leads the multicolour display, with blue threading through as the pendant moves, and the triangular face gives the colour somewhere interesting to travel across. Bezel-set in sterling silver with a 45cm rhodium-plated chain. If you want something you won't see on anyone else's neck, this is it.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8×13mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Multicolour — dominant green with secondary blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Multicolour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Triangle (unusual cut)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling silver bezel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45560930107575,"sku":"2631","price":330.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd425.2.jpg?v=1766491543"},{"product_id":"australian-opal-doublet-silver-pendant-2632","title":"Opal Doublet Pendant – Sterling Silver, 12×10mm, Green \u0026 Blue Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\u003cp\u003eA 18×10mm Australian opal doublet with green leading the colour and blue running underneath — the two shift against each other as the stone moves, which is what makes this pattern read as alive rather than flat. Medium brightness, which means the colour is present and clear without the harsh snap of a very bright stone; it suits indoor light well. Bezel-set in sterling silver, 45cm rhodium-plated chain. A wearable size that doesn't disappear at the neckline.\u003c\/p\u003e\n\u003ch2\u003eAbout Opal Doublets\u003c\/h2\u003e\n\u003cp\u003eAn opal doublet is a thin slice of natural Australian opal cemented to a dark backing — usually ironstone or black potch (the common opal that doesn't carry colour play). Doublets are a legitimate technique used in the opal trade for over a century, and they exist for one good reason: solid opal thick enough to cut as a whole stone is rare, and using the precious opal layer efficiently means more people can own genuine Australian opal at a price that makes sense.\u003c\/p\u003e\n\u003cp\u003eThe opal in this piece is real, natural Australian opal — the same material you'd find in a solid stone, just used more efficiently. The dark backing serves the same function as the dark body tone in a black opal: it acts as a backdrop that intensifies the colour play above it. Visually, a good doublet can rival a solid stone for fire and brilliance — the difference is in the construction, not the opal itself.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Natural Australian Opal Doublet (genuine opal layer with dark backing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 12×10mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant green with secondary blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling silver bezel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCaring for Your Opal Doublet\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, and doublets need extra care around water — prolonged exposure can degrade the bond between the opal layer and its backing. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for the full routine including doublet-specific notes.\u003c\/p\u003e\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs this real Australian opal?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eYes — the opal layer is genuine natural Australian opal, the same material used in solid opal pieces. It's been crafted as a doublet, meaning the opal is cemented to a dark backing rather than left as a thicker solid stone. The opal itself is 100% natural and Australian.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWhat's the difference between a doublet and a solid opal?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eA solid opal is a single piece of opal, thick enough to cut and polish whole. A doublet is a thinner slice of opal cemented to a dark backing — the opal is the same material, just used more efficiently. Solid stones are rarer and more expensive; doublets give you genuine Australian opal colour at a more accessible price.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWill it last? Can the opal come unstuck?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eA well-made doublet will hold for decades with normal wear. The bond can fail if the piece is soaked in water for long periods (think extended swimming or showering), so the main rule is: avoid prolonged water exposure. Day-to-day wear, sweat, the occasional rain — all fine.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45742979186871,"sku":"2632","price":290.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpDbPd427.1.jpg?v=1768652434"},{"product_id":"opal-boulder-silver-pendant-3007","title":"Black Opal Pendant – Sterling Silver, 11×11mm, Dark Body, Green Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eA solid Australian Black Opal pendant, hand-set in sterling silver with a clean bezel that lets the stone do the talking. The opal is a compact, symmetrical triangle — 11×11 mm — with a dark body tone that throws a medium-brightness green flash across its face as the light shifts. That combination of form and colour is exactly what makes a black opal so hard to walk past: the dark ground saturates the green until it seems lit from inside. Worn on a rhodium-plated chain at 45 cm, it sits just below the collarbone — understated enough for everyday wear, distinctive enough that people ask about it.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Black Opal\u003c\/h2\u003e\n\u003cp\u003eBlack opal is the rarest and most sought-after variety of Australian opal, mined almost exclusively from Lightning Ridge in New South Wales. Its dark body tone — from dark grey to jet black — creates a dramatic backdrop that intensifies the stone's natural play-of-colour, producing vivid flashes that appear to glow from within. Black opal with strong green fire is particularly prized by collectors and is considered among the most valuable gemstones in the world.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Black Opal (natural, untreated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 11 × 11 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green dominant flash\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Triangle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling Silver bezel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, so a little care goes a long way. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated black opal from Lightning Ridge, New South Wales. Not a doublet, not a triplet, not synthetic. One stone, natural colour.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat is the chain made of?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe chain is rhodium-plated sterling silver, 45 cm in length. Rhodium plating adds a bright, tarnish-resistant finish and keeps the piece looking clean alongside the sterling silver setting.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45743013200055,"sku":"3007","price":550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/Gemini_Generated_Image_ed87mfed87mfed87.png?v=1768655405"},{"product_id":"australian-black-opal-silver-pendant-3014","title":"Black Opal Pendant – Sterling Silver, 17×8mm, Light Body, Bright Green Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eAn elongated triangle of Australian black opal — 17×8mm and slim enough to catch the eye before you've even focused on it — bezel-set in sterling silver and hung from a 45cm rhodium-plated chain. The stone carries a light body tone that lets colour travel through it rather than reflect off it: tilt it one way and a bright green fires up clean and clear, tilt it again and the flash shifts across the face in that liquid way only solid opal does. Light body doesn't mean less opal — it means the colour lives inside the stone, glowing with a translucent depth that darker stones simply can't replicate. Sits neatly at the collarbone. Wears well every day.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Black Opal\u003c\/h2\u003e\n\u003cp\u003eBlack opal is the rarest and most sought-after variety of Australian opal, mined almost exclusively from Lightning Ridge in New South Wales. Its defining feature is body tone — the darkness of the stone's base, which acts as a backdrop for the colour play above it. At the darker end of the scale, body tone creates vivid, high-contrast flashes. Crystal and light black opals sit at the lighter end: their body tone is still classified within the black opal range, but it's translucent or semi-translucent rather than opaque. This gives the colour a different quality — not the bold drama of a dark black, but a glowing, lit-from-within depth that can be just as striking, and is prized in its own right by collectors who understand what they're looking at. Lightning Ridge light body opals with strong brightness are genuinely rare and increasingly hard to find.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Black Opal (natural, untreated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 17×8mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Bright green flash, mixed pattern\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Light\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Mixed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Elongated triangle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling Silver, bezel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated black opal from Lightning Ridge, New South Wales. Not a doublet, not a triplet, not synthetic. One stone, natural colour.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between a light body opal and a dark black opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBody tone is graded N1 (jet black) through to N9 (crystal clear). Light body black opals sit in the mid-range — still classified as black opal, but with a translucent or semi-translucent base. The colour play appears to glow through the stone rather than flash off a dark backdrop. Neither is inferior — they're just different expressions of the same gem, and collectors prize both for different reasons.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver or plated?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":46717099671735,"sku":"3014","price":860.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd1062.1.jpg?v=1771039283"},{"product_id":"australian-black-opal-silver-pendant-3003","title":"Black Opal Pendant – Sterling Silver, 1.50ct, Crystal Body, Pinfire Multicolour","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\u003cp\u003eA 1.50 carat Australian Black Opal pendant, set in sterling silver and shaped into a regular equilateral triangle — 13×13mm, clean-sided and precise. The stone is a crystal black opal, meaning its base is translucent rather than fully opaque: colour radiates from within the stone in a way that gives the play-of-light extra depth and movement. The pattern is pinfire — one of the recognized classical opal classifications, describing a field of tiny, closely spaced points of colour that fire independently, like a galaxy of pinhead-sized sparks scattered across the stone. Across this 13×13mm triangle, that pinfire lights up in multicolour: flashes of green, blue, and red shifting together as the angle changes. Bezel-set in sterling silver, the stone sits flush and secure with a slim band of metal framing each edge. It hangs from a rhodium-plated chain at 45cm — a collarbone length that keeps the stone visible and centered.\u003c\/p\u003e\n\u003ch2\u003eAbout Black Opal\u003c\/h2\u003e\n\u003cp\u003eBlack opal is the rarest and most prized variety of Australian opal, mined almost exclusively from Lightning Ridge in New South Wales. The defining quality is the dark body tone — from charcoal to near-black — which creates a backdrop that makes natural play-of-colour appear more intense and vivid than in light-bodied stones.\u003c\/p\u003e\n\u003cp\u003eCrystal black opal sits in a specific and striking category: the base of the stone is translucent or semi-translucent rather than fully opaque. This means colour doesn't just sit on the surface — it appears to glow from inside the stone, with light passing through the silica layers and refracting back as colour. The effect is more three-dimensional than you get with a solid dark-body stone, and in good light it can look almost lit from within.\u003c\/p\u003e\n\u003cp\u003ePinfire is one of the classical pattern classifications used by gemologists and opal traders. It describes a pattern where the colour appears as many small, distinct, tightly packed points — individual flashes rather than broad sweeps or rolling waves. A strong pinfire in a crystal body has a quality that's hard to describe without seeing it: dense, sparkling, alive.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Black Opal (natural, untreated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 1.50 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 13×13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Multicolour pinfire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Crystal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Soft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Pinfire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Triangle (equilateral)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling Silver bezel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales, Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, so a little care goes a long way. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated black opal from Lightning Ridge, New South Wales. Not a doublet, not a triplet, not synthetic. One stone, natural colour.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWhat does \"crystal\" body tone mean?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eCrystal refers to the translucency of the stone's base. Unlike a solid dark-body black opal, a crystal black opal allows light to pass through the silica layers — so colour appears to radiate from inside the stone rather than just reflecting off the surface. It gives the play-of-colour a distinctive depth and glow.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWhat is a pinfire pattern?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003ePinfire is a recognised gemological classification for opal pattern. It describes colour that appears as many small, tightly spaced points of light — like a field of sparks or pinhead-sized flashes scattered across the stone. Each point fires independently as the stone moves, creating a dense, dynamic display.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a standard pairing that gives the chain durability and a bright, tarnish-resistant finish. Rhodium is a platinum-group metal and is commonly used to plate silver jewellery for longevity.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":46717099770039,"sku":"3003","price":680.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd1063.1.jpg?v=1771040113"},{"product_id":"australian-boulder-opal-silver-pendant-3008","title":"Boulder Opal Pendant – Sterling Silver, 9×6mm, Red \u0026 Blue Flash, Semi-Dark Body","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"−\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eSmall and perfectly formed — this 9×6mm boulder opal has a soft, near-square shape that makes it one of those everyday pieces you stop noticing you're wearing, and then catch a glimpse of in a mirror and remember why you chose it. Despite its compact footprint the stone carries a bright mix of reddish warmth and light blue, the colours shifting against a semi-dark body as the light changes. Set in a bezel of sterling silver on a 45cm rhodium-plated chain, it's light enough for all-day wear and distinctive enough to be the piece someone always asks about.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Boulder Opal\u003c\/h2\u003e\n\u003cp\u003eBoulder opal forms as veins of precious opal within ironstone matrix in the opal fields of Queensland — primarily Quilpie, Yowah and Winton. Unlike black opal from Lightning Ridge, the opal cannot be separated from its host rock; it's cut as a single solid piece, with the natural brown ironstone remaining as the stone's backing. This gives boulder opal its distinctive look — vivid colour against rich earth tones — and also makes it physically more durable than other opals, since the ironstone host is harder than the opal layer it carries.\u003c\/p\u003e\n\u003cp\u003eEach boulder opal is shaped by the natural geometry of the seam, so freeform and irregular shapes are common. The dark ironstone backing acts as a natural backdrop that intensifies the colour play above it — similar to how the dark body tone of a black opal works, but achieved by geology rather than gemmology.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Boulder Opal (natural, untreated, ironstone matrix)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 9×6mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant reddish, secondary light blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Semi-dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Mixed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Queensland, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations. Boulder opal is more robust than other opal varieties thanks to its ironstone backing, but the precious opal layer still benefits from gentle treatment.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, natural boulder opal from Queensland. The opal and the ironstone backing are one piece, formed together in the ground. Not a doublet, not a triplet, not synthetic.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhy is there ironstone on the back of the stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opal naturally forms as veins of opal within ironstone matrix. The opal can't be separated from its host rock without destroying the stone, so it's cut and polished as one piece. The ironstone backing is part of the natural stone — and it makes boulder opals more durable than other opal varieties.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhere does boulder opal come from?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eAlmost exclusively from the opal fields of central and south-west Queensland — Quilpie, Yowah, and Winton are the major producers. Joseph sources direct from these fields.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":46717100130487,"sku":"Op Bld Pd 3008","price":550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1065.3.jpg?v=1771042100"},{"product_id":"australian-black-opal-silver-pendant-3005","title":"Black Opal Pendant – Sterling Silver, 3.17ct, 17×9mm, Crystal Multicolour","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eAt 3.17 carats and 17 × 9 mm, this is the largest black opal silver pendant in the current collection — and a crystal body tone means every carat earns its keep. Light passes through the stone's translucent silica layers and refracts back as shifting multicolour: no single dominant hue, just a quiet, gradient-like movement of colour that reveals something different in every light. \"Soft brightness\" isn't a weakness — it's the character of a stone whose colour glows rather than flashes, the kind of depth that draws you in rather than announcing itself across the room. The pendant is claw\/prong-set in sterling silver, suspended on a rhodium-plated chain at 45 cm — a length that sits at the collarbone, letting the stone lie flat and catch the light all day.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Black Opal\u003c\/h2\u003e\n\u003cp\u003eBlack opal is the rarest and most sought-after variety of Australian opal, mined almost exclusively from Lightning Ridge in New South Wales. Its body tone — the darkness of the stone's base — defines its character: at the darker end, body tone creates dramatic high-contrast flashes; at the lighter end, where this stone sits, the base is translucent and colour appears to glow from within.\u003c\/p\u003e\n\u003cp\u003eCrystal black opal sits in a specific and prized category. Light passes through the silica layers and refracts back as colour, giving the stone a lit-from-within quality that solid dark-body stones can't match. Combined with multicolour play and a substantial 3.17 carats, this is the kind of stone collectors hunt for.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Black Opal (natural, untreated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 3.17 ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 17 × 9 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Multicolour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Crystal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Soft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling Silver, claw \/ prong\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated black opal from Lightning Ridge, New South Wales. Not a doublet, not a triplet, not synthetic. One stone, natural colour.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does \"crystal\" body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eCrystal refers to a translucent or semi-translucent base. Light passes through the stone rather than reflecting off it, so colour appears to glow from within. Crystal black opals are valued for the depth and three-dimensional quality of their colour play.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eHow should I store and clean it?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eStore in a soft pouch, clean gently with a slightly damp cloth. Avoid ultrasonic cleaners and harsh chemicals. See \"Caring for Your Opal\" above for the full routine.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":46717100261559,"sku":"3005","price":780.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd1067.2.jpg?v=1771043934"},{"product_id":"australian-boulder-opal-18k-gold-ring-5005","title":"Australian Boulder Opal 18K Gold Ring 5005","description":"\u003cp\u003eAustralian Boulder Opal solid stone set in interesting and unusual design 18 Karat Yellow Gold ring with spark of small diamonds.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBoulder opal mined in Western part of Queensland Australia.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":46836774043831,"sku":"Op Bld R 5005","price":22000.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldR5005.1.jpg?v=1771485530"},{"product_id":"australian-boulder-opal-18k-gold-ring-5006","title":"Australian Boulder Opal 18K Gold Ring 5006","description":"\u003cp\u003eAustralian Boulder Opal solid stone set in interesting and unusual design 18 Karat Yellow Gold ring with spark of small diamonds.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBoulder opal mined in Western part of Queensland Australia.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":47102729257143,"sku":"Op Bld R 5006","price":22000.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldR5005.1.jpg?v=1771485530"},{"product_id":"australian-boulder-opal-silver-pendant-3013","title":"Boulder Opal Pendant – Sterling Silver, 3.47ct, Rare Red with Blue","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"−\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eRed is the rarest colour in any opal, and this 3.47ct stone leads with it — the face carries a distinctly reddish pattern that's unusual enough to stop people mid-conversation. Secondary blue plays through it, the two colours shifting against each other across a semi-dark body as the stone catches the light from different angles. At 13×11mm it's a well-proportioned, compact-but-substantial stone — the kind of piece that doesn't need to be large to command attention. Bezel-set in sterling silver on a 45cm rhodium-plated chain. Red boulder opal of this quality does not come around often.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Boulder Opal\u003c\/h2\u003e\n\u003cp\u003eBoulder opal forms as veins of precious opal within ironstone matrix in the opal fields of Queensland — primarily Quilpie, Yowah and Winton. Unlike black opal from Lightning Ridge, the opal cannot be separated from its host rock; it's cut as a single solid piece, with the natural brown ironstone remaining as the stone's backing. This gives boulder opal its distinctive look — vivid colour against rich earth tones — and also makes it physically more durable than other opals, since the ironstone host is harder than the opal layer it carries.\u003c\/p\u003e\n\u003cp\u003eEach boulder opal is shaped by the natural geometry of the seam, so freeform and irregular shapes are common. The dark ironstone backing acts as a natural backdrop that intensifies the colour play above it — similar to how the dark body tone of a black opal works, but achieved by geology rather than gemmology.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Boulder Opal (natural, untreated, ironstone matrix)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 3.47ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 13×11mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant red, secondary blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Semi-dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Queensland, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations. Boulder opal is more robust than other opal varieties thanks to its ironstone backing, but the precious opal layer still benefits from gentle treatment.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, natural boulder opal from Queensland. The opal and the ironstone backing are one piece, formed together in the ground. Not a doublet, not a triplet, not synthetic.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhy is there ironstone on the back of the stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opal naturally forms as veins of opal within ironstone matrix. The opal can't be separated from its host rock without destroying the stone, so it's cut and polished as one piece. The ironstone backing is part of the natural stone — and it makes boulder opals more durable than other opal varieties.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhere does boulder opal come from?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eAlmost exclusively from the opal fields of central and south-west Queensland — Quilpie, Yowah, and Winton are the major producers. Joseph sources direct from these fields.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":47261262348471,"sku":"3013","price":1150.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1069.1_037ac515-f842-4130-aa83-472ce4291b44.jpg?v=1775026757"},{"product_id":"australian-boulder-opal-sterling-silver-pendant-1071","title":"Boulder Opal Pendant – Sterling Silver, 8.21ct, Blue \u0026 Red Stripe","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"−\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eThere's a red stripe across this one. That's not a description — it's the thing about this stone. A vivid band of red runs across a predominantly blue face, as if the opal seam changed its mind mid-formation and recorded both decisions. At 8.21 carats and 16×13mm this is a substantial piece of Queensland geology set in sterling silver, and that stripe is the kind of feature that makes people look twice and then ask to see it again under a different light. The blue that flanks it isn't background — it's present and alive, shifting as the pendant moves. A one-of-a-kind geological event, bezel-set and on a 45cm rhodium-plated chain.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Boulder Opal\u003c\/h2\u003e\n\u003cp\u003eBoulder opal forms as veins of precious opal within ironstone matrix in the opal fields of Queensland — primarily Quilpie, Yowah and Winton. Unlike black opal from Lightning Ridge, the opal cannot be separated from its host rock; it's cut as a single solid piece, with the natural brown ironstone remaining as the stone's backing. This gives boulder opal its distinctive look — vivid colour against rich earth tones — and also makes it physically more durable than other opals, since the ironstone host is harder than the opal layer it carries.\u003c\/p\u003e\n\u003cp\u003eEach boulder opal is shaped by the natural geometry of the seam, so freeform and irregular shapes are common. The dark ironstone backing acts as a natural backdrop that intensifies the colour play above it — similar to how the dark body tone of a black opal works, but achieved by geology rather than gemmology.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Boulder Opal (natural, untreated, ironstone matrix)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 8.21ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 16×13mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant blue, red stripe\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Queensland, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations. Boulder opal is more robust than other opal varieties thanks to its ironstone backing, but the precious opal layer still benefits from gentle treatment.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, natural boulder opal from Queensland. The opal and the ironstone backing are one piece, formed together in the ground. Not a doublet, not a triplet, not synthetic.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhy is there ironstone on the back of the stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opal naturally forms as veins of opal within ironstone matrix. The opal can't be separated from its host rock without destroying the stone, so it's cut and polished as one piece. The ironstone backing is part of the natural stone — and it makes boulder opals more durable than other opal varieties.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhere does boulder opal come from?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eAlmost exclusively from the opal fields of central and south-west Queensland — Quilpie, Yowah, and Winton are the major producers. Joseph sources direct from these fields.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":47320923701431,"sku":"1071","price":1150.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1071.1_6fa9f6bb-3b0a-44cf-97d8-900dd3a41bf8.jpg?v=1775706566"},{"product_id":"australian-black-opal-gold-pendant-2113","title":"Black Opal Pendant – 18K Gold, 3.58ct, Vivid Green Fire, Diamond Accents","description":"\u003cstyle\u003e\n  .rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; }\n  .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; }\n  .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; }\n  .rotr-faq \u003e summary::-webkit-details-marker { display: none; }\n  .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; }\n  .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; }\n  .rotr-faq-answer { margin: 10px 0 0 0; }\n\u003c\/style\u003e\n\u003cp\u003eA one-of-a-kind 3.58 carat Australian Black Opal pendant, hand-set in 18K yellow gold with three bezel-set diamond accents. The opal carries a dominant vivid green broadflash with blue undertones that shift and move as the stone catches light — the hallmark of top-grade Lightning Ridge black opal.\u003c\/p\u003e\n\n\u003cp\u003eThe setting flows in an asymmetric gold curve that wraps the free-form stone, giving the piece a contemporary feel with the weight and presence of a proper heirloom. Suspended from a fine 18K gold-plated chain, it sits beautifully at the collarbone — bold enough to make a statement, refined enough for everyday wear.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Black Opal\u003c\/h3\u003e\n\u003cp\u003eBlack opal is the rarest and most sought-after variety of Australian opal, mined almost exclusively from Lightning Ridge in New South Wales. Its dark body tone — from dark grey to jet black — creates a dramatic backdrop that intensifies the stone's natural play-of-colour, producing vivid flashes that appear to glow from within. Black opal with strong green fire is particularly prized by collectors and is considered among the most valuable gemstones in the world.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Black Opal (natural, untreated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 3.58 ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Vivid green broadflash with blue undertones\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Free-form oval\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e 18K Yellow Gold, flowing asymmetric bezel design\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccent Stones:\u003c\/strong\u003e Three bezel-set diamonds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K Yellow Gold-plated (pendant setting is solid 18K; chain is plated — solid 18K chain upgrade available on request)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCaring for Your Opal\u003c\/h3\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, so a little care goes a long way. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch3\u003eProvenance\u003c\/h3\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n  \u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\n  \u003cp class=\"rotr-faq-answer\"\u003eYes — a solid, untreated black opal from Lightning Ridge, New South Wales. Not a doublet, not a triplet, not synthetic. One stone, natural colour.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n  \u003csummary\u003eIs the chain solid 18K gold or plated?\u003c\/summary\u003e\n  \u003cp class=\"rotr-faq-answer\"\u003eThe pendant setting is solid 18K yellow gold. The chain is 18K yellow gold-plated — a standard pairing that keeps the piece accessible without compromising the setting. A solid 18K chain upgrade is available on request.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n  \u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\n  \u003cp class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003e\u003cem\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":47321543540919,"sku":"2113","price":3950.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2111.1.jpg?v=1775707393"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/collections\/OpalJewellery.jpg?v=1777163923","url":"https:\/\/www.rocksontherocks.com\/collections\/australian-opal-jewellery.oembed?page=3","provider":"Rocks On The Rocks","version":"1.0","type":"link"}