{"title":"Australian Boulder Opal Jewellery","description":"\u003cp\u003eBoulder opal forms as veins of precious opal within ironstone matrix in the opal fields of \u003cstrong\u003eQueensland\u003c\/strong\u003e — 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\u003ch2\u003eWhy Queensland Boulder Opal\u003c\/h2\u003e\n\u003cp\u003eQueensland's opal fields are the only commercially significant source of boulder opal in the world. Quilpie is known for strong reds and broadflash patterns; Yowah produces the famous \"Yowah nut\" — small ironstone nodules with opal centres; Winton specimens often carry harlequin or pinfire patterns. Each region has its own visual character, shaped by the geology of the seam.\u003c\/p\u003e\n\n\u003ch2\u003eSolid Stones, Naturally Backed\u003c\/h2\u003e\n\u003cp\u003eBoulder opal is a solid stone — not a doublet. The dark backing isn't glued on; it's the natural ironstone host that the opal formed inside. This natural backing serves the same function as the dark body tone in a black opal — it intensifies the colour play above it — but it's achieved by geology rather than gemmology. Each piece is shaped by the natural geometry of the seam, so freeform and irregular shapes are common and expected.\u003c\/p\u003e\n\n\u003ch2\u003eHand-Sourced by Joseph\u003c\/h2\u003e\n\u003cp\u003eEvery boulder opal here is personally hand-selected by Joseph Bernecki — Polish-born, Australian-raised, and a 30+ year veteran of the Australian opal trade. Joseph sources direct from the Queensland fields and sets each piece in his Sydney workshop. You can meet him in person any weekend at \u003cstrong\u003eThe Rocks Market, stall under the bridge, Sydney\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eLooking for other Australian opal varieties? Browse our \u003ca href=\"\/collections\/australian-black-opal-jewellery\"\u003eBlack Opal Jewellery\u003c\/a\u003e from Lightning Ridge, or \u003ca href=\"\/collections\/australian-opal-doublet-jewellery\"\u003eOpal Doublet Jewellery\u003c\/a\u003e for genuine Australian opal at an accessible price.\u003c\/p\u003e","products":[{"product_id":"opal-boulder-red-solid-stone","title":"Boulder Opal Cut Stone – Red Fire, Quilpie QLD Solid","description":"\u003cp\u003eA solid Australian Boulder Opal cut stone from Quilpie, South-West Queensland, with dominant red play-of-colour and strong flashes throughout. Red is the rarest and most valuable colour in boulder opal — stones of this grade are uncommon at any size.\u003c\/p\u003e\n\u003cp\u003eSold as a loose stone, ready to be custom-set as a pendant or ring, or kept unset as a collector's piece. Joseph can arrange custom settings to suit.\u003c\/p\u003e\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\u003e\n\u003cp\u003eBoulder opal is found only in Western Queensland, Australia, where seams of precious opal form within ironstone boulders. Unlike other opal varieties, boulder opal is cut with its natural ironstone host rock left on the back of the stone. This dark backing intensifies the colour play. Red-fire boulder opals are the rarest in the trade — most boulder stones show green, blue or orange, so a dominant-red example is a serious find.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Australian Boulder Opal, solid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Quilpie, South-West Queensland, Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Loose cut stone (unset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e Op Bld St 13\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThis is a unique, one-of-a-kind stone. 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":15674544390211,"sku":"Op Bld St 13","price":4500.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/Op-Bld-St-13a-_1.jpg?v=1701755372"},{"product_id":"boulder-opal-solid-stone-5","title":"Boulder Opal Cut Stone – Green \"Grassy\" Pattern, Western QLD","description":"\u003cp\u003eAn Australian Boulder Opal solid cut stone from Western Queensland with strong green colour play and an unusual \"grassy\" linear pattern — the kind of painted-landscape effect that makes boulder opal a favourite among collectors. Subtle blue tints shift through the stone as it catches light.\u003c\/p\u003e\n\u003cp\u003eSold as a loose stone, ready to be set or kept unmounted as a collector's piece.\u003c\/p\u003e\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\u003e\n\u003cp\u003eBoulder opal is found only in Western Queensland, Australia, where seams of precious opal form within ironstone boulders. Unlike other opal varieties, boulder opal is cut with its natural ironstone host rock left on the back of the stone. This dark backing intensifies the colour play and produces the \"picture stone\" effect — unrepeatable painted-landscape patterns that make each boulder opal one of a kind.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Australian Boulder Opal, solid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Strong green with blue accents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e \"Grassy\" linear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Western Queensland, Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Loose cut stone (unset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e Op Bld St 20\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThis is a unique, one-of-a-kind stone. 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":15674681032771,"sku":"Op Bld St 20","price":1100.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/Op-Bld-St-20a-_1.jpg?v=1701755395"},{"product_id":"op-bld-st-21","title":"Boulder Opal Cut Stone – 5.12ct, Orange with Blue \u0026 Red, Western QLD","description":"\u003cp\u003eA 5.12 carat Australian Boulder Opal solid cut stone from Western Queensland. The body shows a warm, glowing orange as the dominant tone, with delicate light-blue and red accents that flash as the stone moves under light.\u003c\/p\u003e\n\u003cp\u003eSized right for a pendant or ring setting and sold as a loose stone. Custom mounting can be arranged.\u003c\/p\u003e\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\u003e\n\u003cp\u003eBoulder opal is found only in Western Queensland, Australia, where seams of precious opal form within ironstone boulders. Unlike other opal varieties, boulder opal is cut with its natural ironstone host rock left on the back of the stone. This dark backing intensifies the colour play. Orange-bodied boulder opals are prized for their warmth — they sit beautifully against both yellow and white gold.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Australian Boulder Opal, solid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 5.12 carats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Orange with light blue and red accents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Western Queensland, Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Loose cut stone (unset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e Op Bld St 21\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThis is a unique, one-of-a-kind stone. 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":15674702626883,"sku":"Op Bld St 21","price":2700.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/products\/Op-Bld-St-21.jpg?v=1539740404"},{"product_id":"boulder-opal-solid-stone-6","title":"Boulder Opal Cut Stone – 87.35ct Large Cabochon, Quilpie QLD","description":"\u003cp\u003eA large 87.35 carat Australian Boulder Opal solid cut stone from Quilpie, South-West Queensland. A serious piece of investment-grade rough cut to display the full spectrum of colour and pattern the Quilpie fields are known for.\u003c\/p\u003e\n\u003cp\u003eSold as a loose stone — ideal for a custom-designed pendant or statement ring, or as a standalone collector's specimen. Joseph can arrange a custom setting to order, or it can remain unset as an investment piece.\u003c\/p\u003e\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\u003e\n\u003cp\u003eBoulder opal is found only in Western Queensland, Australia, where seams of precious opal form within ironstone boulders. Unlike other opal varieties, boulder opal is cut with its natural ironstone host rock left on the back of the stone. This dark backing intensifies the colour play and produces the \"picture stone\" effect — unrepeatable painted-landscape patterns that make each boulder opal one of a kind. Quilpie and the surrounding South-West Queensland fields produce some of the most sought-after boulder opal in the world.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Australian Boulder Opal, solid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 87.35 carats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Quilpie, South-West Queensland, Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Loose cut stone (unset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e Op Bld St 10\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThis is a unique, one-of-a-kind stone. 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":15675518517315,"sku":"Op Bld St 10","price":12000.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/Op-Bld-St-10-_1.jpg?v=1701755361"},{"product_id":"opal-boulder-on-leather-1218","title":"Boulder Opal Necklace – Solid Stone on Leather, 66×30mm, Red Yellow Blue Green Stripes","description":"Australian Boulder Opal Solid Stone Necklace, mined from the Opal fields of West Queensland. Exquisitely sized at 66.5x30.5 mm, the Boulder Opal's bold horizontal stripes of red, yellow, blue, and green will take your breath away with their captivating arrangement!","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":15676653600835,"sku":"1218","price":380.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/products\/OpBldLh11b.jpg?v=1695017736"},{"product_id":"boulder-opal-on-leather-1202","title":"Boulder Opal Necklace – Yowah Solid Stone on Leather, 37×35mm","description":"Discover the Yowah opal mine from South West Queensland, Australia! This unique boulder-shaped solid opal is polished to perfection and set on a silver loop and leather for a daring and adventurous look. Size: 37 x 35 mm.\u003cbr\u003e\n\u003cp style=\"text-align: left;\"\u003e-----------------------------------\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e \u003cb\u003eYowah\u003c\/b\u003e is a small town in outback western Queensland, Australia. The town is known for its opal mining and numerous opal fields around the town. Also, known for the \"Yowah Nut\", type of opal distinctive to the region. \u003c\/em\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":15676686762051,"sku":"1202","price":300.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/products\/IMG_7068.jpg?v=1634730970"},{"product_id":"opal-boulder-specimen-804","title":"Boulder Opal Specimen – 110×95×55mm, 830g, Blue Veins, Western QLD","description":"\u003cp\u003eAustralian Boulder Opal large specimen, natural shape, flat bottom with plenty of blue opal color showing in veins throw the rock.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOrigin: Western Queensland, Australia.\u003c\/p\u003e\n\u003cp\u003eWeight: 0.830 kg\u003c\/p\u003e\n\u003cp\u003eSize: 110 x 95 x 55 mm\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":15678162993219,"sku":"804","price":550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/smIMG-0030-_1.jpg?v=1701755301"},{"product_id":"copy-of-opal-bracelet-5","title":"Boulder Opal Bracelet – Sterling Silver, 3D-Carved Stones, Semi-Dark Blue","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"−\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eMost boulder opal is set as flat-faced cabochons — polished to a smooth dome and left at that. These stones are different. Each one has been carved in three dimensions, shaped so the opal's surface has real topography: depth, contour, form you can feel as well as see. The blue colour play shifts as the bracelet moves, catching light differently against the ironstone matrix that naturally frames each stone. It's the kind of piece that looks simple at a glance and then keeps revealing itself — the carving gives it a sculptural quality you don't often find in wrist-worn opal jewellery. Set in sterling silver with a bezel that holds each stone close to the skin. Semi-dark body tone, medium brightness — the colour is present and direct without being loud.\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)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Semi-dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e 3D-carved sculptural stones\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Sterling Silver\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\u003eAre the stones carved or natural shape?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe stones in this bracelet have been carved in three dimensions — shaped beyond the standard round or oval cabochon so the surface has real contour and depth. This is deliberate craft work, not a natural accident of the opal's growth. Three-dimensional carved opal is less common than flat-faced stones; it takes more material and more time, and the result is a stone that has sculptural presence rather than just sitting flat in the setting.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does semi-dark body tone mean for boulder opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opal's \"body\" is the combined visual effect of the opal layer and its ironstone backing. Semi-dark means the background reads as a mid-to-dark earth tone — the stone doesn't look pale or washed out, but it's not jet black either. On a boulder opal in particular, the ironstone matrix contributes to that warmth, so the blue colour play sits against a rich, grounded background rather than a stark one.\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. The opal and its ironstone host are one piece, as it came 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","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":32914183290933,"sku":"1801","price":790.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG-0017-_1.jpg?v=1701755183"},{"product_id":"op-bld-lh-1201","title":"Australian Boulder opal Necklace 1201","description":"\u003cp\u003eTake a risk and make a statement with this unique, handmade Australian Boulder opal on leather! Boasting a beautiful picture stone and rare blue and green stripes, it's the perfect accessory for a bold adventurer. Dare to wear the challenge!\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":40771156803767,"sku":"Op Bld Lh 1201","price":240.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/products\/OpBldLh24a.jpg?v=1632485258"},{"product_id":"opal-on-leather-1207","title":"Australian Boulder Opal Necklace 1207","description":"\u003cp\u003eThis Australian Boulder Opal on leather is the perfect accessory for the fashionista with a flair for the unique. Its large size, at 49 x 29 mm, is full of dynamic color and a stunning pattern sure to draw everyone's eye. Wear it and turn heads\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":40893116809399,"sku":"Op Bld Lh 1207","price":320.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/products\/OpBldLh30a.jpg?v=1634555277"},{"product_id":"opal-boulder-specimen-815","title":"Australian Boulder Opal Specimen 815","description":"\u003cp\u003eThis Australian Boulder Opal Specimen appears to be a split pair with a resemblance to opalized wood. It was mined in the western region of Queensland.\u003c\/p\u003e\n\u003cp\u003esize 40 x 35 x 6 mm\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":41954319237303,"sku":"Op Bld Sp 815","price":220.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldSp16-1-_1.jpg?v=1701755627"},{"product_id":"opal-on-leather-1215","title":"Australian Boulder Opal Necklace 1215","description":"\u003cp\u003e\u003cstrong\u003eNice Australian Boulder opal square shape interesting semi-curved picture stone.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNew collection of ready-to-wear Opal Specimens, perfect for both men and women. These stunning treasures are guaranteed to bring joy and style to anyone who wears them. With their timeless appeal, they effortlessly enhance any outfit, adding sophistication and opulence. \u003cbr\u003eImmerse yourself in the enchanting world of opulence and discover the captivating allure of our Opal Specimens, the crowning jewels of your collection.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":41983624020151,"sku":"Op Bld Lh 1215","price":245.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG-0177-_1.jpg?v=1701755640"},{"product_id":"opal-on-leather-1218","title":"Australian Opal Boulder necklace 1218","description":"\u003cp\u003e\u003cstrong\u003eNice Australian Boulder opal square shape interesting semi-curved picture stone.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNew collection of ready-to-wear Opal Specimens, perfect for both men and women. These stunning treasures are guaranteed to bring joy and style to anyone who wears them. With their timeless appeal, they effortlessly enhance any outfit, adding sophistication and opulence. \u003cbr\u003eImmerse yourself in the enchanting world of opulence and discover the captivating allure of our Opal Specimens, the crowning jewels of your collection.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42078788223159,"sku":"Op Bld Lh 1218","price":195.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0151_62cdf87f-c89e-46c9-9b19-d37017b8f591.jpg?v=1701313837"},{"product_id":"opal-on-leather-1210","title":"Australian Boulder Opal Necklace 1210","description":"\u003cp\u003eThis extremely rare and captivating Australian Boulder opal from the vast and beautiful region of western Queensland is truly a gem that stands out among millions.\u003cbr\u003e Its dazzling opal, delicately perched atop a sturdy ironstone base, adds an extra layer of charm and elegance to an already remarkable stone. \u003cbr\u003eWhen adorned with this stunning piece, one cannot help but make a bold and confident statement that is sure to turn heads and leave a lasting impression.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42081275084983,"sku":"Op Bld Lh 1210","price":180.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG-0397-_1.jpg?v=1701755642"},{"product_id":"opal-on-leather-1217","title":"Australian Boulder Opal Necklace 1217","description":"\u003cp\u003eThis beautiful and unusual boulder opal necklace originates from the South west Queensland region. It was meticulously mined in the opal fields of Yawah, which is renowned for its one-of-a-kind opals that are combined with ironstone to form the most extraordinary patterns. Owning and wearing such a piece is a source of great pride, as each opal extracted from Yawah is a remarkable fusion of opal and ironstone, resulting in a truly breathtaking and captivating pattern. With this stunning necklace adorning your neck, you can be confident that you will stand out and make a lasting impression wherever you go.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42081276133559,"sku":"Op Bld Lh 1217","price":290.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0413.jpg?v=1701510419"},{"product_id":"opal-specimen-810","title":"Australian Boulder Opal Specimen 810","description":"\u003cp\u003eRare Australian Boulder opal from western Queensland. Featuring a one-of-a-kind opal atop ironstone, this stunning specimen is perfect for those who love to take risks and stand out from the crowd. Don't miss your chance to own a true treasure!\"\u003c\/p\u003e\n\u003cp\u003eweight: 0.47 kg \u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42081454620855,"sku":"Op Bld Sp 810","price":850.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0453.jpg?v=1701520731"},{"product_id":"opal-specimen-820","title":"Australian Boulder Opal Specimen 820","description":"Stunning boulder opal specimen - mined in western Queensland, its mesmerizing bluish color will instill a sense of risk-taking and adventure in you. Unleash your boldness and add this rare find to your collection","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42081455833271,"sku":"Op Bld Sp 820","price":580.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0452-1.jpg?v=1701521023"},{"product_id":"opal-specimen-803","title":"Australian Boulder Opal Specimen 803","description":"Stunning piece of Australian boulder opal, bluish colur as if it was hand curved. Its mesmerizing bluish color appears almost hand-carved, making it a one-of-a-kind piece. Embrace its unique beauty and add a touch of adventure to your collection.","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42081457504439,"sku":"Op Bld Sp 803","price":340.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0445.jpg?v=1701521459"},{"product_id":"australian-boulder-opal-specimen-21","title":"Australian Boulder Opal Specimen 21","description":"\u003cdiv class=\"_Content_tmqkl_19 Polaris-Scrollable Polaris-Scrollable--vertical Polaris-Scrollable--horizontal\" data-polaris-scrollable=\"true\" style=\"pointer-events: auto; touch-action: auto; overscroll-behavior: auto;\" data-mce-fragment=\"1\" data-mce-style=\"pointer-events: auto; touch-action: auto; overscroll-behavior: auto;\"\u003e\n\u003cdiv class=\"Polaris-Box\" style=\"--pc-box-padding-block-start-xs: var(--p-space-0); --pc-box-padding-block-end-xs: var(--p-space-0); --pc-box-padding-inline-start-xs: var(--p-space-400); --pc-box-padding-inline-end-xs: var(--p-space-400);\" data-mce-fragment=\"1\" data-mce-style=\"--pc-box-padding-block-start-xs: var(--p-space-0); --pc-box-padding-block-end-xs: var(--p-space-0); --pc-box-padding-inline-start-xs: var(--p-space-400); --pc-box-padding-inline-end-xs: var(--p-space-400);\"\u003e\n\u003cdiv class=\"Polaris-InlineStack\" style=\"--pc-inline-stack-wrap: wrap; --pc-inline-stack-gap-xs: var(--p-space-400); --pc-inline-stack-flex-direction-xs: row;\" data-mce-fragment=\"1\" data-mce-style=\"--pc-inline-stack-wrap: wrap; --pc-inline-stack-gap-xs: var(--p-space-400); --pc-inline-stack-flex-direction-xs: row;\"\u003e\n\u003cdiv class=\"_TextOutput_zc9gg_1\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"_PlainText_zc9gg_26\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"Polaris-Text--root Polaris-Text--bodyMd\" data-mce-fragment=\"1\"\u003eSmall piece of Australian boulder opal mined in western Queensland, light bluish color Sourced from the stunning landscapes of western Queensland, this high-quality specimen features a mesmerizing light bluish color that will ignite your sense of adventure and discovery. Dare to add a piece of the Outback to your collection\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_Footer_tmqkl_36\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"Polaris-InlineStack\" style=\"--pc-inline-stack-block-align: center; --pc-inline-stack-wrap: wrap; --pc-inline-stack-gap-xs: var(--p-space-400); --pc-inline-stack-flex-direction-xs: row;\" data-mce-fragment=\"1\" data-mce-style=\"--pc-inline-stack-block-align: center; --pc-inline-stack-wrap: wrap; --pc-inline-stack-gap-xs: var(--p-space-400); --pc-inline-stack-flex-direction-xs: row;\"\u003e\n\u003cdiv class=\"Polaris-Box\" style=\"--pc-box-min-height: var(--p-space-1200); --pc-box-padding-block-start-xs: var(--p-space-300); --pc-box-padding-block-end-xs: var(--p-space-300); --pc-box-padding-inline-start-xs: var(--p-space-300); --pc-box-padding-inline-end-xs: var(--p-space-300); --pc-box-width: 100%;\" data-mce-fragment=\"1\" data-mce-style=\"--pc-box-min-height: var(--p-space-1200); --pc-box-padding-block-start-xs: var(--p-space-300); --pc-box-padding-block-end-xs: var(--p-space-300); --pc-box-padding-inline-start-xs: var(--p-space-300); --pc-box-padding-inline-end-xs: var(--p-space-300); --pc-box-width: 100%;\"\u003e\n\u003cdiv class=\"Polaris-InlineStack\" style=\"--pc-inline-stack-align: space-between; --pc-inline-stack-block-align: center; --pc-inline-stack-wrap: wrap; --pc-inline-stack-gap-xs: var(--p-space-400); --pc-inline-stack-flex-direction-xs: row;\" data-mce-fragment=\"1\" data-mce-style=\"--pc-inline-stack-align: space-between; --pc-inline-stack-block-align: center; --pc-inline-stack-wrap: wrap; --pc-inline-stack-gap-xs: var(--p-space-400); --pc-inline-stack-flex-direction-xs: row;\"\u003e\n\u003cdiv class=\"Polaris-Box\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"Polaris-InlineStack\" style=\"--pc-inline-stack-block-align: center; --pc-inline-stack-wrap: wrap; --pc-inline-stack-gap-xs: var(--p-space-100); --pc-inline-stack-flex-direction-xs: row;\" data-mce-fragment=\"1\" data-mce-style=\"--pc-inline-stack-block-align: center; --pc-inline-stack-wrap: wrap; --pc-inline-stack-gap-xs: var(--p-space-100); --pc-inline-stack-flex-direction-xs: row;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42081458094263,"sku":"Op Bld Sp 21","price":220.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0442.jpg?v=1701521597"},{"product_id":"australian-opal-specimens-825","title":"Australian Opal Boulder Specimens 825","description":"Experience the magical process of opal formation with this stunning pair of Boulder opal specimens from Queensland, Australia. Witness the captivating patterns and colors that make opals truly one-of-a-kind. A must-have for collectors, these opals offer a unique opportunity to own a piece of geological artistry. Don't miss out on this bold and captivating addition to your collection","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42105408880823,"sku":"Op Bld Sp 825","price":480.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_2195.jpg?v=1717473072"},{"product_id":"opal-boulder-ring-115","title":"Boulder Opal Ring – Sterling Silver, Green Flash of Colour","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 Queensland boulder opal in sterling silver, bezel-set so the ironstone edge of the stone sits flush against the band. The colour play is a strong green flash — the kind that jumps clean and bright rather than sitting quiet in the stone. Set against the natural brown earth tones of the ironstone host, the green reads vivid. The bezel holds the stone low and secure, making this a ring you can wear through the day without worrying about a raised setting catching on things. Size O½ AU — see below for US and EU equivalents, and note this ring can be resized before it ships.\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\u003eColour Play:\u003c\/strong\u003e Strong green flash of colour\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Strong\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Sterling Silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e O½ AU · 8 US · 57 EU\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResizeable:\u003c\/strong\u003e Yes\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 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. The ironstone you see as the stone's backing is the natural host rock the opal formed in — it's part of the stone, not added.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat is a flash of colour pattern?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA flash pattern is exactly what it sounds like — the colour appears as a single, sweeping burst of light rather than a scattered or mosaic-style pattern. As you tilt the ring, the green comes on all at once, bright and clean. It's a bold effect rather than a subtle shimmer.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCan the ring be resized?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — this ring can be resized. Joseph or his jeweller can take the band up or down by a size or two; larger adjustments may be possible depending on the band's design. Resizing is best done before delivery so the ring arrives ready to wear. Get in touch with your size and we'll quote.\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":42125402734775,"sku":"115","price":350.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0681.jpg?v=1744716923"},{"product_id":"opal-boulder-ring-2406","title":"Australian Opal Boulder Silver Ring 2406","description":"\u003cp data-start=\"108\" data-end=\"299\" class=\"\"\u003eHandcrafted sterling silver ring with genuine Australian boulder opal – oval shape, vibrant blue and green tones – unique gemstone jewelry for women, perfect for gifts or everyday wear.\u003c\/p\u003e\n\u003cp data-start=\"108\" data-end=\"299\" class=\"\"\u003eMetal: 925 Sterling Silver\u003cbr\u003eOrigin of Stone: Boulder Opal from Queensland, Australia\u003cbr\u003eRing Size: S 1\/2 (AU), 9 1\/2 (US), 20.75 (EUR)\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42125405487287,"sku":"Op Bld R 2406","price":680.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0688.jpg?v=1744714826"},{"product_id":"opal-ring-123","title":"Australian Opal Boulder Silver Ring 123","description":"\u003cp\u003eAdd a touch of adventure to your style with our Boulder Opal Ring. This stunning ring features a beautiful boulder opal set in a sterling silver band. Make a bold statement and stand out from the crowd with this unique and high-quality piece of jewelry!\u003c\/p\u003e\n\u003cp\u003eMetal: Sterling Silver\u003c\/p\u003e\n\u003cp\u003eOpal: Boulder opal solid stone from Queensland \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSize 8 1\/4\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42133431910583,"sku":"Op Bld R 123","price":335.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0762.jpg?v=1704169228"},{"product_id":"opal-specimen-25","title":"Australian Boulder Opal Specimen 817","description":"Bring home a piece of the Outback with this stunning Opal specimen. It's a one-of-a-kind addition to any rock collection, featuring a beautiful Queensland boulder opal weighing 0.22kg and measuring at an impressive 105x35x50mm. Don't miss out on the chance to own this rare gem from the land down under!","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42310675300535,"sku":"Op Bld Sp 817","price":150.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_2643.jpg?v=1707908366"},{"product_id":"opal-specimen-805","title":"Australian Boulder Opal Specimen 805","description":"Add a unique touch to your collection with this 0.33kg boulder opal specimen, displaying colors on both sides. At 95x45x50 mm, it's a bold addition for those who love taking risks and seeking new adventures. Perfect for those who crave the unusual and crave the thrill of discovery","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42310679822519,"sku":"Op Bld Sp 805","price":250.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_2657.jpg?v=1717406205"},{"product_id":"opal-specimen-802","title":"Australian Boulder Opal Specimen 802","description":"Stunning Opal Specimen! This boulder opal from Queensland boasts a transparent bluish hue and a weight of 0.26kg. Measuring at 90x55x45 mm, it's perfect for collectors and adventurers alike. Dare to add this gem to your collection.","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42310719570103,"sku":"Op Bld Sp 802","price":350.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_2672.jpg?v=1708343610"},{"product_id":"opal-on-leather-1214","title":"Australian Boulder Opal  Necklace 1214","description":"\u003cp\u003eOpal on Leather necklace! This beautiful boulder opal, mined in the Australian outback, reflects the colors of the dry country. The simple design on a silver loop with chain adds a touch of adventure to any outfit. Dare to stand out with this stunning piece!\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42322649481399,"sku":"Op Bld Lh 1214","price":245.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_2706.jpg?v=1708427776"},{"product_id":"opal-specimen-818","title":"Australian Boulder Opal Specimen 818","description":"This stunning opal split pair specimen unveils the beauty hidden within the ground, inviting you to discover its true brilliance. Uncover the secrets within as you \"open\" to this mesmerizing opal specimen.","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42337601159351,"sku":"Op Bld Sp 818","price":330.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_2790.jpg?v=1708777167"},{"product_id":"opal-on-leather-1203","title":"Australian Boulder Opal Necklace 1203","description":"Add a unique touch to your style with Opal on Leather! This premium piece features a Queensland-mined Boulder opal, set on a sleek leather band. Stand out from the crowd and add some personality to your wardrobe.","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42516017676471,"sku":"Op Bld Lh 1203","price":250.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_2937.jpg?v=1711963254"},{"product_id":"opal-on-leather-1212","title":"Australian Boulder opal Necklace 1212","description":"Add a unique touch to your style with the Opal on leather. The boulder opal on leather creates a modern and versatile look that suits anyone. leather gives modern look suites anyone","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42516418101431,"sku":"Op Bld Lh 1212","price":280.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_2958.jpg?v=1711964168"},{"product_id":"opal-boulder-pendant-3001","title":"Boulder Opal Pendant – Sterling Silver, 25×13mm, Dark Body, Flash of Colour","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 25×13mm this is a large stone for a pendant — it sits confidently, not daintily. The dark body pulls the flash of colour forward, so the play-of-colour reads clearly even in ordinary light. Set in a sterling silver bezel that keeps the stone the whole story, and hung on a rhodium-plated chain that resists tarnish. Queensland boulder opal at this size with a dark body is a piece you wear rather than tuck away.\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 25×13mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Flash of colour\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 Rhodium-plated sterling silver, 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 does a dark body tone mean for this stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBody tone describes how light or dark the background of the stone is when no colour play is showing. A dark body gives the colour real contrast — it works like a black backdrop in photography, making the flash of colour appear sharper and more vivid than it would against a light background. On this stone the dark ironstone host provides that backdrop naturally, which is part of what makes boulder opal distinctive.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42647698440375,"sku":"3001","price":980.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_3470.jpg?v=1714470971"},{"product_id":"opal-boulder-pendant-3011","title":"Boulder Opal Pendant – Sterling Silver, 35×16mm, Deep Blue, Semi-Dark","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"−\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eThirty-five millimetres long. That's not a stone you tuck away — at 35×16mm this is the largest piece in the collection, a genuinely bold slab of Queensland ironstone carrying a sweep of blue opal colour across its face. Semi-dark body tone, medium brightness — the blue is deep and settled rather than electric, which is exactly right for a stone this size: it wears with authority rather than demanding your attention at volume. Boulder opal cut to this length follows the natural seam of the deposit, and the result is an elongated, sculptural shape that works beautifully as a statement pendant. Bezel-set in sterling silver on a 45cm rhodium-plated chain. If you've ever wanted to own a piece of Australian opal that genuinely makes a statement, this is it.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Boulder Opal\u003c\/h2\u003e\n\u003cp\u003eBoulder opal forms as veins of precious opal within ironstone matrix in the opal fields of Queensland — primarily Quilpie, Yowah and Winton. Unlike black opal from Lightning Ridge, the opal cannot be separated from its host rock; it's cut as a single solid piece, with the natural brown ironstone remaining as the stone's backing. This gives boulder opal its distinctive look — vivid colour against rich earth tones — and also makes it physically more durable than other opals, since the ironstone host is harder than the opal layer it carries.\u003c\/p\u003e\n\u003cp\u003eEach boulder opal is shaped by the natural geometry of the seam, so freeform and irregular shapes are common. The dark ironstone backing acts as a natural backdrop that intensifies the colour play above it — similar to how the dark body tone of a black opal works, but achieved by geology rather than gemmology.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Boulder Opal (natural, untreated, ironstone matrix)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 35×16mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Semi-dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Queensland, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations. Boulder opal is more robust than other opal varieties thanks to its ironstone backing, but the precious opal layer still benefits from gentle treatment.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, natural boulder opal from Queensland. The opal and the ironstone backing are one piece, formed together in the ground. Not a doublet, not a triplet, not synthetic.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhy is there ironstone on the back of the stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opal naturally forms as veins of opal within ironstone matrix. The opal can't be separated from its host rock without destroying the stone, so it's cut and polished as one piece. The ironstone backing is part of the natural stone — and it makes boulder opals more durable than other opal varieties.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhere does boulder opal come from?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eAlmost exclusively from the opal fields of central and south-west Queensland — Quilpie, Yowah, and Winton are the major producers. Joseph sources direct from these fields.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42651136262327,"sku":"3011","price":890.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1057.1.jpg?v=1773819917"},{"product_id":"opal-boulder-pendant-3004","title":"Boulder Opal Pendant – Sterling Silver, 29×20mm, Dark Body, Broad Blue Flash","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"−\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003eAt 29×20mm this is a substantial stone — large enough that the broad blue colour fills the pendant with real presence on the neck. The opal rolls out a wide, sweeping flash of blue across a dark body tone, the kind of colour that shifts as you move and catches light from across a room. Set in a bezel of sterling silver with a 45cm rhodium-plated chain, it sits confidently at the collarbone — a piece you wear when you want to be noticed, not a piece that disappears into the background.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Boulder Opal\u003c\/h2\u003e\n\u003cp\u003eBoulder opal forms as veins of precious opal within ironstone matrix in the opal fields of Queensland — primarily Quilpie, Yowah and Winton. Unlike black opal from Lightning Ridge, the opal cannot be separated from its host rock; it's cut as a single solid piece, with the natural brown ironstone remaining as the stone's backing. This gives boulder opal its distinctive look — vivid colour against rich earth tones — and also makes it physically more durable than other opals, since the ironstone host is harder than the opal layer it carries.\u003c\/p\u003e\n\u003cp\u003eEach boulder opal is shaped by the natural geometry of the seam, so freeform and irregular shapes are common. The dark ironstone backing acts as a natural backdrop that intensifies the colour play above it — similar to how the dark body tone of a black opal works, but achieved by geology rather than gemmology.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Boulder Opal (natural, untreated, ironstone matrix)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 29×20mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Dominant blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Broadflash\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, sterling silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Queensland, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpals are softer than diamonds or sapphires, so a little care keeps yours brilliant for generations. Boulder opal is more robust than other opal varieties thanks to its ironstone backing, but the precious opal layer still benefits from gentle treatment.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, natural boulder opal from Queensland. The opal and the ironstone backing are one piece, formed together in the ground. Not a doublet, not a triplet, not synthetic.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhy is there ironstone on the back of the stone?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eBoulder opal naturally forms as veins of opal within ironstone matrix. The opal can't be separated from its host rock without destroying the stone, so it's cut and polished as one piece. The ironstone backing is part of the natural stone — and it makes boulder opals more durable than other opal varieties.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhere does boulder opal come from?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eAlmost exclusively from the opal fields of central and south-west Queensland — Quilpie, Yowah, and Winton are the major producers. Joseph sources direct from these fields.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a platinum-group finish that resists tarnish and keeps the silver looking clean longer than uncoated silver.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42651196948663,"sku":"3004","price":850.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1058.1.jpg?v=1773822028"},{"product_id":"australian-boulder-opal-specimen-812","title":"Australian Boulder Opal Specimen 812","description":"\u003cp\u003eYour inner rockhound will love the vibrant red and green striations waiting to be discovered in this stunning Australian Boulder Opal. It's a unique piece of Australia that adds a touch of mystery to your collection.\u003c\/p\u003e\n\u003ch4\u003e\n\u003cem\u003eweigh 0.43kg \u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\n\u003cem\u003eSize 108x55x45mm\u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003c!----\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42937969344695,"sku":"Op Bld Sp 812","price":650.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/A-IMG_0005.jpg?v=1717399768"},{"product_id":"australian-boulder-opal-specimen-811","title":"Australian Boulder Opal Specimen 811","description":"\u003cp\u003eReady to take your collection to the next level? Look no further than this stunning Australian Boulder Opal specimen! With its striking combination of green and blue hues, this gem is a true collectors' find. Take a piece of Australia's beauty home with you today!\"\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cem\u003eweigh 0.97kg \u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\n\u003cem\u003eSize 125x90x60mm\u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003c!----\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42937998278839,"sku":"Op Bld Sp 811","price":2500.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0624.jpg?v=1717401536"},{"product_id":"australian-boulder-opal-specimen-copy-2","title":"Australian Boulder Opal Specimen 33","description":"\u003cp\u003eBring a piece of the colorful earth into your home with this beautiful Australian Boulder Opal Specimen. With an earthy picture on one side and a vibrant top, it's a unique and stunning addition to any collection. And of course, it's all about the opal (opal-ly). Just imagine the conversations you'll have around this beauty.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cem\u003eweigh 0.2kg \u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\n\u003cem\u003eSize 70x55x27mm\u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003c!----\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42938067976375,"sku":"Op Bld Sp 33","price":380.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/IMG_0454-2.jpg?v=1717404665"},{"product_id":"australian-boulder-opal-specimen-814","title":"Australian Boulder Opal Specimen 814","description":"\u003cp\u003eThis Australian Boulder Opal Specimen features a stunning combination of opal and rock, displaying striking lines of opal throughout the stone. The resulting pattern is truly beautiful and unique.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cem\u003eweigh 0.05kg \u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\n\u003cem\u003eSize 55x40x20mm\u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003c!----\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":42942747607223,"sku":"Op Bld Sp 814","price":180.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/AA-IMG_0001_1.jpg?v=1717491541"},{"product_id":"opal-ring-137-copy","title":"Australian Opal Boulder Silver Ring 2402","description":"\u003cp\u003eSet in quality sterling silver, this Australian Opal Boulder Ring boasts an intriguing free shape with mesmerizing light blue and green hues. This stunning piece is a prime example of the unique and captivating beauty of Australian opals.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMetal: 925 Sterling Silver\u003cbr\u003eOrigin of Stone: Boulder Opal from Queensland, Australia\u003cbr\u003eRing Size: O 1\/2  (AU), 7 1\/2 (US), 15.75 (EUR)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43017839837367,"sku":"Op Bld R 2402","price":680.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/RocksontheRocks-OpalRingSilver2024_06_06_0341_6aaa2c92-980f-4526-9579-de9da758c965.jpg?v=1723116387"},{"product_id":"opal-ring-139-copy","title":"Boulder Opal Ring – Sterling Silver, Dark Body, Blue Flash of Colour","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\u003eThe stone in this ring sits in a clean bezel of sterling silver, and it does what Queensland boulder opal does well — holds a dark, grounded body tone while throwing a strong flash of blue that shifts as the hand moves. The flash comes from within the ironstone matrix the opal grew inside, so what you're wearing is a single solid piece of rock, not a composite. It's a ring that reads quietly at rest and catches attention in motion. Size N½ AU fits comfortably on a ring finger — and if it needs adjusting, it can be resized before it leaves the workshop.\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\u003eColour Play:\u003c\/strong\u003e Blue flash of colour\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 Strong colour\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Sterling Silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e N½ AU · 7 US · 14½ EU\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResizeable:\u003c\/strong\u003e Yes\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 a dark body tone mean for boulder opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eA dark body tone means the ironstone and opal base of the stone reads as deep brown-black when the colour play goes quiet. That darkness acts like a stage — the blue flash above it appears more saturated and vivid than it would against a lighter background. Dark boulder opal is the most prized end of the range for this reason.\u003c\/div\u003e\u003c\/details\u003e\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 stone's play-of-colour appears as a broad, sweeping movement of light — not a fine grid of dots (pinfire) or a patchwork of colour blocks, but a single surge of colour that rolls across the face of the stone as the angle changes. On this ring the flash is blue, and it reads as one continuous sheet of colour rather than multiple separate patches.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCan the ring be resized?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — this ring can be resized. Joseph or his jeweller can take the band up or down by a size or two; larger adjustments may be possible depending on the band's design. Resizing is best done before delivery so the ring arrives ready to wear. Get in touch with your size and we'll quote.\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":43017862283447,"sku":"140","price":500.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/RocksontheRocks-OpalRingSilver2024_06_06_0353.jpg?v=1718622939"},{"product_id":"australian-boulder-opal-on-leather-1209","title":"Australian Boulder Opal on leather 1209","description":"\u003cp\u003eThe Australian Boulder Opal from Yawah is a stunning example of nature's artistry. Its unique and intricate patterns are reminiscent of a master designer's touch.\u003cbr\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43329370095799,"sku":"Op Bld Lh 1209","price":190.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldLh44.jpg?v=1724332370"},{"product_id":"australian-boulder-opal-necklace-on-leather-1204","title":"Australian Boulder Opal Necklace on leather 1204","description":"\u003cp\u003eEnhance your personal style with the Australian Boulder Opal Necklace on leather. The combination of boulder opal and leather creates a contemporary yet versatile aesthetic, suitable for anyone. Leather adds a modern touch that is universally appealing.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43329482555575,"sku":"Op Bld Lh 1204","price":190.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldLh451.jpg?v=1724333168"},{"product_id":"australian-boulder-opal-necklace-on-leather-1205","title":"Australian Boulder Opal Necklace on leather 1205","description":"\u003cp\u003eAdd a refined touch to your personal style with the Australian Boulder Opal Necklace on leather. The fusion of boulder opal and leather lends a modern and adaptable aesthetic, making it a versatile choice for all. The addition of leather adds a contemporary element that is universally appealing.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43329537474743,"sku":"Op Bld Lh 46","price":245.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldLh46.jpg?v=1724333675"},{"product_id":"australian-boulder-opal-necklace-on-leather-1216","title":"Australian Boulder Opal Necklace on leather 1216","description":"\u003cp\u003eAdd a refined touch to your personal style with the Australian Boulder Opal Necklace on leather. The fusion of boulder opal and leather lends a modern and adaptable aesthetic, making it a versatile choice for all. The addition of leather adds a contemporary element that is universally appealing.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43329608188087,"sku":"Op Bld Lh 1216","price":195.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldLh47.jpg?v=1724334194"},{"product_id":"australian-boulder-opal-necklace-on-leather-1211","title":"Australian Boulder Opal Necklace on leather 1211","description":"\u003cp\u003eThis opal necklace is a unique addition to your jewelry collection, featuring a captivating pattern and vibrant colors reminiscent of a flowing river. Elevate your style with this modern and eye-catching piece.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43329650131127,"sku":"Op Bld Lh 1211","price":185.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldLh48.jpg?v=1724334557"},{"product_id":"australian-boulder-opal-necklace-on-leather-1206","title":"Australian Boulder Opal Necklace on leather 1206","description":"\u003cp\u003eThis boulder opal necklace is an exquisite and versatile addition to any jewelry collection. Perfect for anyone looking to add a touch of elegance and sophistication to their wardrobe.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43329757118647,"sku":"Op Bld Lh 1206","price":165.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldLh50.jpg?v=1724335745"},{"product_id":"australian-boulder-opal-stone-25","title":"Australian Boulder Opal Stone 1502","description":"\u003cp\u003eAustralian Boulder Opal originated from Quilpie, located in South West Queensland, Australia. Its elegant oval shape features a beautiful bluish pattern, making it a perfect addition to any jewelry collection.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSize: 19x13mm\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43343491268791,"sku":"Op Bld St 150225","price":550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldSt25.jpg?v=1724504307"},{"product_id":"australian-boulder-opal-stone-27","title":"Australian Boulder Opal Stone 1504","description":"\u003cp\u003eThis Australian Boulder Opal Stone is sourced from around Quilpie opal mines, South West Queensland, Australia. Its captivating free form showcases a distinctive, multicolored pattern with iron rock patches.\u003c\/p\u003e\n\u003cp\u003eSize: 17x15mm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43343578136759,"sku":"Op Bld St 1504","price":195.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/2024_06_10_0458.jpg?v=1728043502"},{"product_id":"australian-boulder-opal-specimen-48","title":"Australian Boulder Opal Specimen 48","description":"\u003cp\u003eThis Australian Boulder opal specimen beautifully cut and polished shows blend of mostly blue color, different shades of blue, creating  stunning piece for collectors and anyone who appreciates nice unusual item.\u003c\/p\u003e\n\u003cp\u003eDouble-sided\u003c\/p\u003e\n\u003ch4\u003e\n\u003cem\u003eweigh 0.28g \u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\n\u003cem\u003eSize 85x60x40mm\u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003c!----\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43383952736439,"sku":"Op Bld Sp 48","price":1850.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldSp481.7.jpg?v=1738993254"},{"product_id":"australian-boulder-opal-specimen-821","title":"Australian Boulder Opal Specimen 821","description":"\u003cp\u003eThis Australian Boulder opal specimen is a very impressive all around piece showing opal and way how is formed.  Highly polished around makes friendly welcoming piece of natural formed boulder opal. \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cem\u003eweigh 0.88g \u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\n\u003cem\u003eSize 90x75x75mm\u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003c!----\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43384103633079,"sku":"Op Bld Sp 821","price":950.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldSp541.8.jpg?v=1727848164"},{"product_id":"australian-boulder-opal-specimen-806","title":"Australian Boulder Opal Specimen 806","description":"\u003cp\u003eThis Australian Boulder opal specimen showing how opal is formed in iron stone, perfect example of that process showing incredible way of water getting into free spaces  and forming opal. I*t is nicest sample of that process. Nice polishing of the rock and exposing colorful vans of opal, \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cem\u003eweigh 0.67kg \u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\n\u003cem\u003eSize 170x45x45mm\u003c\/em\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003c!----\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43482060521655,"sku":"Op Bld Sp 806","price":1550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldSp551.2.jpg?v=1727847347"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/collections\/OpBldPd1071.1_6fa9f6bb-3b0a-44cf-97d8-900dd3a41bf8.jpg?v=1779176181","url":"https:\/\/www.rocksontherocks.com\/collections\/australian-boulder-opal-jewellery.oembed","provider":"Rocks On The Rocks","version":"1.0","type":"link"}