{"title":"18K Gold Opal Pendants","description":"\u003cp\u003eAustralian opal pendants in solid 18 karat yellow gold. This collection holds my finest stones — premium black opal from Lightning Ridge and top-grade boulder opal from Queensland, set in 18K gold with diamond accents on most pieces.\u003c\/p\u003e\u003cp\u003eThese stones are selected from decades of buying direct at the Australian opal fields: strong colour bar, clean body tone, pattern that reads in any light. Each one is cut and polished by me, then set by Sydney jewellers I've worked with for years. They are investment-grade pieces — once a piece sells, that exact opal is gone.\u003c\/p\u003e\u003cp\u003eEach pendant ships presentation-boxed with stone documentation. Insured worldwide shipping, backed by my 25+ year personal guarantee.\u003c\/p\u003e","products":[{"product_id":"australian-boulder-opal-gold-pendant-2002","title":"Boulder Opal Pendant – 18K Gold, 12×7mm, Green Rolling Flash 2002","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\u003eThis 12×7mm boulder opal sits in a close bezel of solid 18K yellow gold — a setting that holds the stone firmly at the edges and lets its colour breathe at the centre. The stone's semi-dark body gives the colour real contrast without the heaviness of a fully dark backdrop, and its green rolling flash is exactly that: a continuous sweep of green that moves across the face of the stone as you tilt it, like a wave of colour travelling through the opal rather than sitting still. It hangs on an 18K gold-plated chain at 45cm — a neat length that sits mid-collar, suited to everyday wear or a night out. One stone, one setting, one piece.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal\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 Green\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 Rolling flash\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, solid 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45 cm\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\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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat is rolling flash?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eRolling flash means the colour rolls across the stone face like a wave as the stone moves — a continuous sweep of colour rather than discrete pinpoints or angular blocks. Tilt the pendant slightly and the green travels across the stone from one side to the other; tilt it back and it returns. It's one of the more striking movement patterns an opal can have, and it reads clearly even at a distance.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does semi-dark body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eSemi-dark means the background of the stone sits between a light-bodied opal and a fully black one — dark enough to give the colour real contrast, light enough that the stone still reads warm rather than heavy. On a boulder opal it often carries the warm browns of the ironstone backing through it, which adds depth without the stark drama of a black opal.\u003c\/div\u003e\u003c\/details\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 boulder opal from Queensland. 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\u003eIs the chain solid 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43599482388663,"sku":"2002","price":1250.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1061.1.jpg?v=1727264943"},{"product_id":"australian-boulder-opal-gold-pendant-2063","title":"Boulder Opal Pendant – 18K Gold, 11×5mm, Semi-Dark, Green \u0026 Blue 2063","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\u003eThis slender Queensland boulder opal sits in a bezel of solid 18K yellow gold — a clean, modern setting that puts all the attention on the stone. The opal is small and elongated at 11×5mm, which gives it a quiet elegance on the neck rather than the bold statement of a larger piece. Its semi-dark body tone creates real contrast behind the colour play: a bright flash of green shifts toward blue as the pendant catches the light, the kind of movement that rewards a second look. Comes on a 45cm chain.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 11×5mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green and 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 Flash of colour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, 18K yellow gold\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\u003eTreatment:\u003c\/strong\u003e Solid natural — untreated\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\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\u003csummary\u003eWhat does semi-dark body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eSemi-dark describes the background of the stone — the base it sits on underneath the colour play. It's not fully black, and it's not a light or milky opal — it sits in between. Dark enough to give the green and blue colour real contrast and punch, but the stone still reads warm rather than heavy. Semi-dark boulder opals are a reliable choice if you want visible fire without going all the way to a black opal price.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated boulder opal from Queensland. 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43599485829303,"sku":"2063","price":1250.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1063.2.jpg?v=1727265154"},{"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-boulder-opal-gold-pendant-2066","title":"Boulder Opal Pendant – 18K Gold, Semi-Dark, Blue Flash of Colour 2066","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 15×7mm this is a wearable but substantial stone — long enough to sit with presence against the neckline, and narrow enough to read as elegant rather than bold. The background is semi-dark, that sweet spot where the ironstone host is rich enough to give the colour real contrast but not so heavy that the stone feels opaque. Across that backdrop runs a flash of colour that pulls blue first, with green coming in as the light shifts — the kind of movement you notice when the wearer turns, not just when you hold it under a lamp. Set in claw-style 18K yellow gold, which lifts the stone slightly off the finger-plate and lets light reach it from more angles.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 15×7mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Blue and green\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\u003ePattern:\u003c\/strong\u003e Flash of colour\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\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Queensland, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Solid — natural, untreated\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\u003csummary\u003eWhat does semi-dark body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eSemi-dark means the background of the stone sits between a light-bodied opal and a fully black one. It's dark enough to give the colour real contrast — so the blue and green flash stands out rather than washing out — but light enough that the stone still reads warm and earthy rather than heavy. For boulder opal especially, the semi-dark tone works with the natural ironstone to create depth rather than just surface flash.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated Boulder Opal from Queensland. 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\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\u003e\u003cem\u003eEach piece is one-of-a-kind. Once this stone sells, there is no other like it.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43599492087991,"sku":"2066","price":1550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1066.1.jpg?v=1727265491"},{"product_id":"australian-boulder-opal-gold-pendant-2004","title":"Boulder Opal Pendant – 18K Gold, 11×9mm, Semi-Dark, Bright Green \u0026 Blue 2004","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 compact 11×9mm boulder opal in an 18K yellow gold claw setting — and a stone that punches well above its size. The semi-dark body gives the colour real contrast: green is dominant, shifting to blue as the angle changes, and the brightness classification means it catches light readily rather than needing you to hold it close. The ironstone host makes boulder opal physically tougher than other opal types, which suits a pendant that moves — this one will wear without anxiety. The gold claw setting shows the stone's edges cleanly, keeping nothing hidden.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 11×9mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green and blue, green dominant\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 Claw \/ prong, 18K yellow gold\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\u003eTreatment:\u003c\/strong\u003e Natural solid — no treatment\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\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\u003csummary\u003eWhat does semi-dark body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eSemi-dark means the stone's background sits between a light-bodied opal and a fully dark one. It's dark enough to give the colour play strong contrast — the greens and blues read vividly against it — but light enough that the stone still has warmth rather than depth. For boulder opal specifically, the ironstone backing contributes to the overall tone, which is why body tone reads differently here than on a black opal from Lightning Ridge.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated boulder opal from Queensland. 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\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\u003e\u003cem\u003eEach piece is one-of-a-kind. Once this stone sells, there is no other like it.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43599499985079,"sku":"2004","price":1550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1069.2.jpg?v=1759468887"},{"product_id":"australian-boulder-opal-gold-pendant-2070","title":"Boulder Opal Pendant – 18K Gold, 13×8mm, Semi-Dark, Green Pinfire 2070","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\u003ePinfire is one of the rarer patterns in Australian opal — tiny, tightly packed points of colour that flash across the stone's face like lit sparks. On this 13×8mm Queensland boulder opal, the pinfire arrives in green: hundreds of minute colour points that shift and catch as the pendant moves. The semi-dark body gives the colour enough contrast to read with real presence, and the brightness grading means the flash is visible from a natural distance — not something you have to angle into the light to see. Set in an 18K yellow gold bezel, the warm metal tone complements the green fire without competing with it. The pendant hangs on an 18K gold-plated 45cm chain, ready to wear.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 13×8mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green\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 Pinfire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, 18K yellow gold\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 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\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\u003csummary\u003eWhat is a pinfire pattern?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003ePinfire describes a colour pattern made up of very small, closely spaced points of colour — like hundreds of tiny sparks scattered across the stone's face. Each point flashes independently as the stone moves or the light shifts, so the overall effect is a dense, animated scatter of colour rather than broad sweeps or rolling flashes. It's one of the more distinctive patterns in Australian opal, and stones with strong, evenly distributed pinfire across a well-coloured background are genuinely hard to come by.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does semi-dark body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eSemi-dark means the background of the stone sits between a light-bodied opal and a fully black one — dark enough to give the colour play real contrast, but still warm and earthen rather than heavy or opaque. On this boulder opal, the natural ironstone backing contributes to the depth of tone. The result is that the green pinfire reads clearly without needing to be held at a precise angle to the light.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated boulder opal from Queensland. Not a doublet, not a triplet, not synthetic. One stone, natural colour, cut with the ironstone backing intact as nature formed it.\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\u003e\u003cem\u003eEach piece is one-of-a-kind. Once this stone sells, there is no other like it.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43599503163575,"sku":"2070","price":1550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1070.1.jpg?v=1727266048"},{"product_id":"australian-boulder-opal-gold-pendant-2001","title":"Boulder Opal Pendant – 18K Gold, 1.75ct, Square Bezel, Diamond Accent 2001","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\u003eThis 1.75ct Queensland boulder opal catches light the way ironstone country does at dusk — a deep blue that dominates, broken by flashes of red that come and go as the stone moves. The setting is an unusual square bezel in solid 18K yellow gold, a clean geometric cut that frames the colour play without competing with it. A small bezel-set diamond accent sits at the perimeter of the design, adding a single point of white light against the gold. The stone is solid and natural — no treatments, no backing layers — and the piece hangs on a 45 cm 18K gold-plated chain.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal (solid, natural)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 1.75ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Blue (dominant) and red (secondary)\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 set with a small diamond accent\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45 cm\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\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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat makes this a \"bright\" stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA bright stone carries strong, vivid colour that reads clearly in most lighting conditions — indoors, outdoors, under warm or cool light. This boulder opal has that quality: the blue and red play-of-colour is not a subtle effect you have to search for; it presents itself. At the upper end of the brightness range, the colour has a saturation and intensity that distinguishes it from softer or more subdued stones in the same catalogue.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat is boulder opal and why does the ironstone stay?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opal grows as thin veins of precious opal through Queensland ironstone. The veins are often too thin to cut as a standalone stone — if you tried to remove the ironstone backing, you'd lose most or all of the opal. So the stone is cut as a combined piece: opal and ironstone together. The ironstone isn't a flaw or a compromise; it's a natural part of the stone, and its brown-earth tones are part of what makes boulder opal look distinctive compared with other opal types.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural, untreated opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated boulder opal from Queensland. Not a doublet, not a triplet, not synthetic. The opal and its natural ironstone backing are cut as a single piece, exactly as they came from the ground.\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44055999381687,"sku":"2001","price":2250.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/1.5.jpg?v=1733874891"},{"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":"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-gold-pendant-2081","title":"Boulder Opal Pendant – 18K Gold, 1.55ct, Light Red \u0026 Green 2081","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\u003eLight red is an unusual colour for Australian opal — green is common, blue is common, but that warm red-to-crimson range tends to appear in stones that command a premium. Here it sits alongside bright green, the two colours shifting against each other as the piece moves. At 1.55 carats in a solid bezel setting, this is a stone that reads clearly from arm's length: not a small accent, not a dainty flash, but a pendant that holds its own. The ironstone backing that came with the stone in the ground is still there, doing what it always did — giving that colour something to push against.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 1.55ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Light red and green\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Solid natural — untreated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45 cm\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\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\u003csummary\u003eIs the chain solid 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\u003eIs light red colour rare in opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — red is the rarest end of the opal colour spectrum. Opals that show red — and especially those where red is the dominant colour rather than a brief flash — are consistently the most sought-after at auction and among collectors. The light red here sits at the warm, rose-to-crimson end rather than deep spectral red, but the colour is genuine and uncommon in boulder opal.\u003c\/div\u003e\u003c\/details\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 boulder opal from Queensland. Not a doublet, not a triplet, not synthetic. One stone, natural colour, with its original ironstone backing intact from the ground.\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\u003e\u003cem\u003eEach piece is one-of-a-kind. Once this stone sells, there is no other like it.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44536194531511,"sku":"2081","price":1750.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd2081.1.1a.jpg?v=1776836511"},{"product_id":"australian-boulder-opal-gold-pendant-2009","title":"Black Opal Pendant – 18K Gold, 0.86ct, Semi-Dark, Green Flash 2009","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\u003cp\u003eThis Lightning Ridge black opal sits in a slim bezel of solid 18K yellow gold, with a single diamond accent beside it. At 15×7 mm the stone is notably elongated — longer than many pendants at this carat weight — and that proportion means the green flash of colour travels across its face in a wide, rolling sweep rather than concentrating in a single point. Body tone is semi-dark: dark enough to give the colour drama, light enough that the stone still reads warm rather than heavy against the skin. On the chain — 18K gold-plated at 45 cm — it sits at the collarbone, where movement catches the flash repeatedly throughout the day. Offered as a single one-of-a-kind piece.\u003c\/p\u003e\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 fire is particularly prized by collectors and is considered among the most valuable gemstones in the world.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Black Opal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 0.86 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 15 × 7 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green dominant\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 Flash of colour\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel set, with a diamond accent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-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\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\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\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWhat does \"semi-dark\" body tone mean for this stone?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eSemi-dark sits between a light-bodied opal and a fully black one. On this piece, the semi-dark backdrop gives the green flash strong contrast without making the stone read heavy or opaque — a particularly wearable part of the spectrum.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWhat is a \"flash of colour\" pattern?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eFlash of colour describes a pattern where the play-of-colour appears and disappears in a single bold sweep as the stone moves, rather than breaking into a grid (harlequin), a scatter of small dots (pinfire), or a rolling wave (broadflash). On an elongated stone like this 15×7 mm piece, the flash can travel the full length of the face in one movement — which is exactly what makes the proportion work so well at the collarbone.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs the chain solid gold or plated?\u003c\/summary\u003e\n\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\n\u003c\/details\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. 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44536198529207,"sku":"2009","price":1950.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2082.4.jpg?v=1741082723"},{"product_id":"australian-boulder-opal-gold-pendant-2003","title":"Boulder Opal Pendant – 18K Gold, 2.68ct, Semi-Dark, Green \u0026 Red 2003","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 2.68 carats this Queensland boulder opal sits at a weight where the stone has real presence on the body — not a sliver, not a statement-piece boulder, but a pendant you'd actually wear. The colour play is what Joseph flagged when he selected it: an unusual pairing of green and red moving together across a semi-dark background. Green and red are opposite ends of the opal spectrum, and finding them both in the same stone — shifting as the piece catches light from different angles — is rarer than either colour alone. The bezel setting in 18K yellow gold follows the stone's natural edge and lets the full face show, with the warmth of the gold picking up the green without dulling it. The chain is 18K gold-plated, 45 cm, ready to wear.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 2.68ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green and red\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Semi-dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K gold-plated, 45 cm\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\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\u003csummary\u003eIs the chain solid 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\u003eWhat does semi-dark body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eSemi-dark means the background of the stone sits between a light-bodied opal and a fully black one — dark enough to give the colour real contrast, light enough that the stone still reads warm rather than heavy. On this piece the semi-dark background is what makes the green and red pop rather than sit flat.\u003c\/div\u003e\u003c\/details\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 boulder opal from Queensland. 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\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\u003e\u003cem\u003eEach piece is one-of-a-kind. Once this stone sells, there is no other like it.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44536217370807,"sku":"2003","price":1500.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd2084.2.jpg?v=1741844273"},{"product_id":"australian-black-opal-18kt-gold-pendant-2091","title":"Australian Black Opal Crystal 18kt Gold Pendant 2091","description":"\u003cp\u003eAustralian Black Opal Crystal from Lightning Ridge New South Wales set in 18 karat yellow gold pendant with gold plated chain. Stone measures 12x9 mm and weighs 1.56 carats. It is simple and stunning piece of opal jewelry.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44813552517303,"sku":"2091","price":1750.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2091.3.1JPG.jpg?v=1776835010"},{"product_id":"australian-boulder-opal-18kt-gold-pendant-2093","title":"Boulder Opal Pendant – 18K Gold, Vivid Red, Diamond Accents 2093","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 Australian opal, and this Queensland boulder opal carries it strongly — a vivid, broad sweep of red with light green playing through it, set in an 18K yellow gold bezel with a cluster of small diamonds around the stone. The gold warms against the ironstone matrix; the diamonds pull your eye into the colour without competing with it. A serious piece — the kind you buy once and wear for decades.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Australian Boulder Opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Red dominant with light green secondary — strong, vivid play of colour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Strong colour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccent Stones:\u003c\/strong\u003e Few small bezel-set diamonds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 18K Yellow Gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K gold-plated chain, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Solid natural — untreated\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\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\u003csummary\u003eIs red colour rare in opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — red is the rarest and most sought-after colour in Australian opal. It sits at the long-wavelength end of the spectrum and requires a specific silica sphere arrangement to appear; most opals produce blues and greens far more readily than red. A stone with strong, dominant red — especially one from Queensland's boulder fields — commands a premium precisely because of that scarcity.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated boulder opal from Queensland. 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44827115389111,"sku":"2093","price":4400.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd2093.6_00f5ff39-f44c-42cd-8745-0c3739d7e4e7.jpg?v=1777362302"},{"product_id":"australian-boulder-opal-18kt-gold-pendant-2094","title":"Black + Boulder Opal Pendant – 18K Gold, 1.74ct, Red \u0026 Blue, Dark Body 2094","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\u003eMost opal jewellery carries one stone. This pendant carries two — a black opal from Lightning Ridge and a boulder opal from Queensland, set together in a single 18K gold bezel. Combined, they weigh 1.74ct, and the pairing earns its keep: the dark body of the black opal throws off vivid red and blue against the earthy contrast of the boulder. Bright fire, deep colour, one wearable piece. An unusual thing to find.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Australian Black + Boulder Opal\u003c\/h3\u003e\n\u003cp\u003eThis piece sets two distinct Australian opals together: black opal from Lightning Ridge in New South Wales, prized for its dark body tone and intense colour play, alongside boulder opal from Queensland — colour-bearing veins of opal cut as a single piece with their natural ironstone backing intact. Pieces combining both are uncommon; they let one setting carry the dramatic fire of black opal next to the earthy contrast of boulder, two ends of the Australian opal spectrum in one wearable piece.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone(s):\u003c\/strong\u003e Black Opal (Lightning Ridge) + Boulder Opal (Queensland)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal Carat Weight:\u003c\/strong\u003e 1.74ct (combined)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Multicolour — dominant red, secondary 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 Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel\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\u003eMetal:\u003c\/strong\u003e 18K Yellow Gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Black Opal — Lightning Ridge, NSW; Boulder Opal — Queensland\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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhy two types of opal in one piece?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eIt's unusual. Joseph set them together because they complement each other: the black opal from Lightning Ridge brings the high-contrast dark body that makes colour fire at full intensity, while the boulder opal from Queensland adds a warmer, earthier note with its natural ironstone. Individually each is a classic Australian opal. Together they tell a wider story about where Australian opal comes from and what it can do.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eHow are the stones arranged in the setting?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoth stones are held in a single bezel setting in 18K yellow gold. A bezel wraps a fine rim of metal around the edge of the stones, holding them securely without prongs — practical for daily wear, and a clean look that lets the opal do the talking.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — both stones are solid, untreated natural Australian opals. The black opal is from Lightning Ridge, NSW; the boulder opal is from Queensland. Neither is a doublet, triplet, or synthetic. Natural colour, no treatments.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44828789276855,"sku":"2094","price":3450.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2094.2.jpg?v=1743832346"},{"product_id":"australian-black-opal-18kt-gold-pendant-2008","title":"Black Opal Pendant – 18K Gold, 2.12ct, Light Body, Diamond Accent 2008","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 light-bodied black opal at 2.12 carats is a rare thing. Most Lightning Ridge material at this size carries a semi-dark or dark body — the light body tone here is unusual, giving the stone a warm, open quality rather than the high-contrast drama of its darker cousins. That warmth doesn't suppress the colour; it spreads it, producing a wide, diffuse play of light greens and shifting hues that reads differently at different angles. Set in bezel-style 18K yellow gold — a setting that wraps the stone rather than clawing it — with a diamond accent sitting above the opal, this is 12 × 10 mm of genuinely uncommon Lightning Ridge opal. Comes on an 18K gold-plated 45 cm chain, ready to 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 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 Black Opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 2.12ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 12 × 10 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Multicolour — dominant light green\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 Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccent Stone:\u003c\/strong\u003e Diamond accent set above the opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Solid natural opal — no treatments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales\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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does a light body tone mean on a black opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBody tone describes how dark or pale the background of the stone is. A light body tone is unusual in black opal — most Lightning Ridge material runs darker. Here the stone's background sits on the lighter end of the spectrum, which gives the colour play a warmer, more open character than a fully dark-bodied stone. The colour is still vivid; it just sits in a softer, more luminous setting rather than punching out against a near-black background.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat is the diamond accent on top?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe diamond accent is a small natural diamond set into the gold above the opal. It adds a point of bright white sparkle at the top of the pendant — a counterpoint to the diffuse colour of the opal below. It's a detail Joseph adds by hand in his Sydney workshop.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\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. 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44833982218423,"sku":"2008","price":2250.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2096.1.jpg?v=1743829227"},{"product_id":"australian-black-opal-18kt-gold-pendant-2097","title":"Australian Black Opal 18kt Gold Pendant 2097","description":"\u003cp class=\"\" data-end=\"1246\" data-start=\"753\"\u003eThis exquisite pendant features a genuine black opal from Lightning Ridge, carefully set in rich 18 karat yellow gold. The opal showcases a stunning play of color, with vibrant flashes of red, green, blue, and gold dancing across its surface—characteristic of premium-quality black opals. The gold setting complements the opal’s iridescence beautifully, offering a luxurious yet timeless look.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"1383\" data-start=\"1248\"\u003ePerfect as a statement piece or a cherished gift, this pendant captures the magic and rarity of natural opal in a sophisticated design.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"248\" data-start=\"225\"\u003e\u003cstrong data-end=\"248\" data-start=\"225\"\u003ePendant Description\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"751\" data-start=\"250\"\u003e\u003cem\u003e\u003cstrong data-end=\"259\" data-start=\"250\"\u003eItem:\u003c\/strong\u003e \u003c\/em\u003e18 Karat Gold Pendant with Black Opal \u003cbr data-end=\"308\" data-start=\"305\"\u003e\u003cstrong data-end=\"321\" data-start=\"308\"\u003e\u003cem\u003eMateria\u003c\/em\u003el:\u003c\/strong\u003e Solid 18 karat gold\u003cbr data-end=\"344\" data-start=\"341\"\u003e\u003cem\u003e\u003cstrong data-end=\"354\" data-start=\"344\"\u003eStone:\u003c\/strong\u003e\u003c\/em\u003e Natural Black Opal from Lightning Ridge\u003cbr data-end=\"384\" data-start=\"381\"\u003e\u003cem\u003e\u003cstrong data-end=\"406\" data-start=\"384\"\u003eAdditional Detail:\u003c\/strong\u003e\u003c\/em\u003e Small round diamond accent on the bail\u003cbr data-is-only-node=\"\" data-end=\"448\" data-start=\"445\"\u003e\u003cem\u003e\u003cstrong data-end=\"459\" data-start=\"448\"\u003eFinish:\u003c\/strong\u003e \u003c\/em\u003ePolished gold with secure custom bezel setting\u003cbr data-end=\"570\" data-start=\"567\"\u003e\u003cem\u003e\u003cstrong data-end=\"579\" data-start=\"570\"\u003eSize:\u003c\/strong\u003e\u003c\/em\u003e Approx. 15x10 mm\u003cbr data-end=\"627\" data-start=\"624\"\u003e\u003cstrong data-end=\"638\" data-start=\"627\"\u003eWeight:\u003c\/strong\u003e 2.27 carat\u003cbr data-end=\"679\" data-start=\"676\"\u003e\u003cstrong data-end=\"698\" data-start=\"679\"\u003eOrigin of Opal:\u003c\/strong\u003e Lightning Ridge, Australia\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44846753808567,"sku":"2097","price":3950.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2097.1.jpg?v=1744291236"},{"product_id":"australian-boulder-opal-gold-pendant-2098","title":"Boulder Opal Pendant – 18K Gold, 3.92ct, Broadflash 2098","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 3.92 carats and 20×9mm, this is a pendant that wears with presence. The stone is a solid Queensland boulder opal — the ironstone matrix cut away to reveal a broad, unbroken sweep of colour across the entire face. When the piece moves, the broadflash pattern rolls through in one wide arc rather than breaking into scattered points: an effect that draws the eye and holds it. Set in a bezel of solid 18K yellow gold, the warm metal and the earth-toned ironstone backing pull in the same direction, making the colour play read even brighter by contrast. A striking piece for someone who wears jewellery to be noticed.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 3.92ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 20 × 9 mm\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 Broadflash\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, solid 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45 cm\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\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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat is a broadflash pattern?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBroadflash means the colour across the stone face appears as one wide, unbroken sweep rather than being broken up into smaller dots or patches. When the pendant moves in the light, you see a single band of colour roll across the stone face — the way a wave rolls rather than the way rain falls. It's one of the more dramatic patterns a stone can show, because the entire face turns colour at once.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat's the difference between boulder opal and black opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBlack opal comes from Lightning Ridge in New South Wales and is cut as a standalone stone — the opal fully separated from its host rock. Boulder opal comes from Queensland and can't be separated from the ironstone it grew inside; the ironstone stays as the stone's natural backing. Both are solid, natural opals with genuine colour play. Black opal is valued for its dark backdrop and concentrated fire; boulder opal is valued for its earthy character, natural durability, and the way the ironstone and opal read as one piece. Neither is better — they're different materials with different personalities.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\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 boulder opal from Queensland. 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":44974371668151,"sku":"2098","price":2600.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_3526.jpg?v=1748953563"},{"product_id":"australian-black-opal-18k-gold-pendant-2099","title":"Black Opal Pendant – 18K Gold, 2.96ct, Semi-Dark, Green Mixed Flash 2099","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 2014","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-black-opal-gold-pendant-2007","title":"Black Opal Pendant – 18K Gold, Crystal Body, Red \u0026 Green Fire 2007","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\u003eThis Lightning Ridge black opal sits in a claw prong setting of solid 18K yellow gold — a 7×7 mm square stone with a crystal body that lets light pass through before bouncing back as colour. The dominant fire is red, with secondary green flashing at the turn of the stone; the crystal body means both colours read with particular depth and translucency rather than sitting flat against a dark backdrop. At this size and price it wears well as a daily pendant — substantial enough to read clearly against a neckline, light enough that the 45 cm gold-plated chain keeps it sitting neatly without pull.\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 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 Black Opal (solid, natural)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 7 × 7 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Red dominant, green secondary — multicolour fire\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\u003eSetting:\u003c\/strong\u003e Claw \/ prong, solid 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-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\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\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 is translucent — light passes through the stone rather than bouncing off an opaque dark backdrop. The colours appear to glow from inside the stone, with a three-dimensional depth that flat-bodied opals can't match. It's a different look to a fully dark-body black opal: more luminous, more lit-from-within.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45295285305527,"sku":"2007","price":780.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2101.7.jpg?v=1758780237"},{"product_id":"australian-black-opal-18k-gold-pendant-2103","title":"Black Opal Pendant – 18K Gold, Crystal Body, Soft Light Green 2103","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\u003eSome opals announce themselves. This one doesn't need to. Set in an 8×6mm claw setting in solid 18K yellow gold, it carries a crystal body — clear-through, with soft light green colour play that shifts as it moves. The fire is gentle rather than electric: a stone that rewards a second look, and a third. On the neck it sits like a quiet confidence — refined, understated, and entirely its own. One piece, sourced from Lightning Ridge.\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 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 Black Opal (solid, natural)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8×6 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Soft light green with mixed hues\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 Claw \/ prong, solid 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, NSW, 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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does crystal body tone mean for this stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eCrystal body tone means the opal is translucent — light passes through it rather than being absorbed. That's what gives the soft light green colour play its three-dimensional depth: the fire appears to float inside the stone rather than sit on its surface. Combined with the soft brightness on this piece, the effect is gentle and luminous rather than intense.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\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. 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45295298576567,"sku":"2103","price":890.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2103.4.jpg?v=1758780499"},{"product_id":"australian-black-opal-18k-gold-pendant-2012","title":"Black Opal Pendant – 18K Gold, 8×6mm, Semi-Dark, Bright Green Flash 2012","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 compact 8×6mm Lightning Ridge black opal with a semi-dark body and a clean burst of green that snaps into focus as the stone moves. The flash is the kind that reads across a room — not a gentle shimmer, but a decisive hit of colour. Set in an 18K yellow gold claw setting and paired with an 18K gold-plated 45cm chain, it sits close to the collar and quietly until the light catches it. The small footprint makes it an all-day piece — one you can wear without thinking about, until someone notices it.\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 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 Black opal, solid\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8×6 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green dominant\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 Flash of colour\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\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, NSW, 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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does \"semi-dark\" body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eSemi-dark sits between a light-bodied opal and a fully black one. The background is dark enough to give the green flash sharp contrast and depth, but lighter than the deepest jet-black stones. In wear, it reads as a dark, fiery opal with strong colour against a clearly dark base — a particularly versatile part of the spectrum.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat is a flash of colour pattern?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eFlash of colour describes a pattern where the colour play appears as a single broad sweep or burst rather than a scattered field of smaller dots (pinfire) or a tiled grid (harlequin). The colour changes sharply as the stone rotates — off, then suddenly on — which is where the \"flash\" name comes from. It tends to read as bold and decisive rather than complex.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\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, NSW. 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45295305588919,"sku":"2012","price":880.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2104.4.jpg?v=1758780988"},{"product_id":"australian-black-opal-18k-gold-pendant-2105","title":"Black Opal Pendant – 18K Gold, Bezel-Set, Green Flash 2105","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 2106","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":3350.0,"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-black-opal-18k-gold-pendant-2015","title":"Black Opal Pendant – 18K Gold, 3.61ct, Crystal Body, Multicolour 2015","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 3.61 carats, this is a substantial stone — large enough that the colour play commands the piece rather than accentuating it. The opal is a crystal-body black opal from Lightning Ridge: light passes through those silica layers and throws the multicolour fire back at you with a reddish warmth dominant through the palette. It sits in an 18K yellow gold claw setting that holds the stone securely while keeping the full face open to the light, and a small bezel-set diamond accent adds a point of brilliance without competing with the opal. The chain is 18K gold-plated, 45 cm, ready to 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 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 Black Opal (solid, natural)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 3.61ct\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Multicolour with reddish dominant\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 Light\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\u003eAccent:\u003c\/strong\u003e A small bezel-set diamond accent\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K gold-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, NSW, 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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does crystal body tone mean for a black opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eCrystal body tone means the stone is translucent — light actually travels through the silica layers and refracts back as colour, rather than bouncing off a solid dark backdrop. On a black opal, this creates a different quality of fire from a fully opaque dark stone: the colour has depth and appears to glow from inside rather than sit on the surface. The reddish dominant in this stone is the kind that benefits from that translucency — it shifts and deepens as the angle changes.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\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, NSW. 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45505000603831,"sku":"2015","price":1950.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2107.1.jpg?v=1765074464"},{"product_id":"boulder-opal-pendant-18k-gold-pendant-2108","title":"Boulder Opal Pendant – 18K Gold, Dark Body, Flash of Colour, Diamond Accent 2108","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 compact but vivid stone — this 12×6mm Queensland boulder opal sits in an 18K yellow gold bezel with a small diamond accent set above it. The stone carries a dark body that deepens the colour, and the flash shifts as the pendant moves: bright and immediate, the kind of colour that catches you before you've had a chance to look for it. The bezel wraps the opal cleanly with no prongs to snag, and the 18K gold-plated chain keeps the overall look warm and consistent. One stone, one setting, made once.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\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\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal (solid, natural)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 12×6 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Bright\/vivid — strong colour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Flash of colour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel — 18K yellow gold; small diamond accent set above the opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45 cm\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\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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat is a flash of colour pattern?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eFlash of colour means the opal's colour appears as a single strong sweep or strike rather than scattered pinpoints. As the stone moves, the colour seems to switch on and off — you get a vivid hit of colour from one angle, and then it shifts as you change your view. On a dark-body stone like this boulder opal, that flash reads with real intensity against the deep background.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eHow is a dark body tone different from black opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opals aren't graded the same way as Lightning Ridge black opals, but this stone's background sits in the darker range — deep enough that the colour above it has strong contrast and reads as vivid rather than washed out. It's not the jet-black of a classic Lightning Ridge stone, but the dark ironstone backing of boulder opal does the same job: it makes the colour pop.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\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 boulder opal from Queensland. 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45747212452023,"sku":"2108","price":1350.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd2108.1.jpg?v=1768903046"},{"product_id":"australian-black-opal-18k-gold-pendant-2013","title":"Australian Black Opal 18k Gold Pendant 2013","description":"\u003cp data-start=\"139\" data-end=\"528\"\u003eDiscover the natural beauty of this solid Australian Black Opal pendant, highlighted by its play of colour mostly green blue. Expertly handcrafted in Australia and set in luxurious 18K yellow gold, it offers a timeless and beautifully simple design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-start=\"705\" data-end=\"715\"\u003eStone:\u003c\/strong\u003e Black Opal \u003cbr data-start=\"736\" data-end=\"739\"\u003e\u003cstrong data-start=\"739\" data-end=\"750\"\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, Australia\u003cbr data-start=\"772\" data-end=\"775\"\u003e\u003cstrong data-start=\"775\" data-end=\"787\"\u003eSetting:\u003c\/strong\u003e 18K Yellow Gold\u003cbr data-start=\"803\" data-end=\"806\"\u003e\u003cstrong data-start=\"806\" data-end=\"816\"\u003eStyle:\u003c\/strong\u003e Oval\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45747254788279,"sku":"2013","price":1450.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd2109.1.jpg?v=1768903836"},{"product_id":"australian-black-opal-crystal-18k-gold-pendant-2110","title":"Black Opal Pendant – 18K Gold, 8×3mm, Semi-Dark, Rolling Red Flash 2110","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 8×3mm this stone is narrow and elongated — closer to a sliver than a classic opal oval — and that proportion makes the rolling flash do something distinctive: as the pendant moves, a broad wave of red sweeps the length of the stone from one end to the other. The body tone is semi-dark, sitting between a fully black stone and a lighter one; dark enough to give the red real contrast, warm enough that the stone doesn't read as heavy. The fire is bold and active — this one reads from a distance, not just under close examination. Bezel-set in solid 18K yellow gold, suspended on an 18K gold-plated chain at 45 cm. One stone, natural colour, sourced direct from Lightning Ridge.\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 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 Black Opal (solid, natural)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8×3 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Red dominant\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 Strong 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\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, NSW, 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\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does \"strong flash\" brightness mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eIt means the colour reads bold and active across the stone, not subtle or shimmering. A strongly flashing opal catches your eye from across the room; you don't need to angle it carefully under a light to see the fire. On this stone, the red is immediately visible in normal indoor light.\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 recognised gemological pattern where one or more broad bands of colour sweep across the stone as the viewing angle changes — rolling from one end to the other rather than sitting as a fixed patch. On a narrow elongated stone like this one, the effect is particularly pronounced: a single wave of red travels the full length as the pendant moves.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does \"semi-dark\" body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe body tone is the background colour of the stone itself, separate from its colour play. Semi-dark sits between a light-bodied opal and a fully black one — dark enough to give the colour real contrast and depth, but not so heavy that the stone feels opaque. On this pendant it gives the red flash a warm, glowing quality rather than the stark intensity of a jet-black background.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid 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\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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":45747329007799,"sku":"2110","price":950.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/Later2.3.jpg?v=1768905461"},{"product_id":"australian-black-opal-gold-pendant-2113","title":"Black Opal Pendant – 18K Gold, 3.58ct, Vivid Green Fire, Diamond Accents 2113","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\/OpBlkPd2111.1.jpg?v=1777163839","url":"https:\/\/www.rocksontherocks.com\/collections\/australian-black-opal-gold-pendant-2113.oembed","provider":"Rocks On The Rocks","version":"1.0","type":"link"}