{"product_id":"australian-black-opal-silver-pendant-3003","title":"Black Opal Pendant – Sterling Silver, 1.50ct, Crystal Body, Pinfire Multicolour","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"\\2212\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\u003cp\u003eA 1.50 carat Australian Black Opal pendant, set in sterling silver and shaped into a regular equilateral triangle — 13×13mm, clean-sided and precise. The stone is a crystal black opal, meaning its base is translucent rather than fully opaque: colour radiates from within the stone in a way that gives the play-of-light extra depth and movement. The pattern is pinfire — one of the recognized classical opal classifications, describing a field of tiny, closely spaced points of colour that fire independently, like a galaxy of pinhead-sized sparks scattered across the stone. Across this 13×13mm triangle, that pinfire lights up in multicolour: flashes of green, blue, and red shifting together as the angle changes. Bezel-set in sterling silver, the stone sits flush and secure with a slim band of metal framing each edge. It hangs from a rhodium-plated chain at 45cm — a collarbone length that keeps the stone visible and centered.\u003c\/p\u003e\n\u003ch2\u003eAbout Black Opal\u003c\/h2\u003e\n\u003cp\u003eBlack opal is the rarest and most prized variety of Australian opal, mined almost exclusively from Lightning Ridge in New South Wales. The defining quality is the dark body tone — from charcoal to near-black — which creates a backdrop that makes natural play-of-colour appear more intense and vivid than in light-bodied stones.\u003c\/p\u003e\n\u003cp\u003eCrystal black opal sits in a specific and striking category: the base of the stone is translucent or semi-translucent rather than fully opaque. This means colour doesn't just sit on the surface — it appears to glow from inside the stone, with light passing through the silica layers and refracting back as colour. The effect is more three-dimensional than you get with a solid dark-body stone, and in good light it can look almost lit from within.\u003c\/p\u003e\n\u003cp\u003ePinfire is one of the classical pattern classifications used by gemologists and opal traders. It describes a pattern where the colour appears as many small, distinct, tightly packed points — individual flashes rather than broad sweeps or rolling waves. A strong pinfire in a crystal body has a quality that's hard to describe without seeing it: dense, sparkling, alive.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Solid Australian Black Opal (natural, untreated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarat Weight:\u003c\/strong\u003e 1.50 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 13×13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Multicolour pinfire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Crystal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Soft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Pinfire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Triangle (equilateral)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Sterling Silver bezel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e Rhodium-plated, 45cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Lightning Ridge, New South Wales, Australia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCaring for Your Opal\u003c\/h2\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, so a little care goes a long way. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\u003ch2\u003eProvenance\u003c\/h2\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated black opal from Lightning Ridge, New South Wales. Not a doublet, not a triplet, not synthetic. One stone, natural colour.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWhat does \"crystal\" body tone mean?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eCrystal refers to the translucency of the stone's base. Unlike a solid dark-body black opal, a crystal black opal allows light to pass through the silica layers — so colour appears to radiate from inside the stone rather than just reflecting off the surface. It gives the play-of-colour a distinctive depth and glow.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eWhat is a pinfire pattern?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003ePinfire is a recognised gemological classification for opal pattern. It describes colour that appears as many small, tightly spaced points of light — like a field of sparks or pinhead-sized flashes scattered across the stone. Each point fires independently as the stone moves, creating a dense, dynamic display.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eIs the chain sterling silver?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is sterling silver. The chain is rhodium-plated — a standard pairing that gives the chain durability and a bright, tarnish-resistant finish. Rhodium is a platinum-group metal and is commonly used to plate silver jewellery for longevity.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\n\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\n\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003eThis is a one-of-a-kind piece. Once sold, it cannot be replicated. Every opal at Rocks On The Rocks is hand-selected by Joseph for its individual character and quality.\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":46717099770039,"sku":"3003","price":680.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBlkPd1063.1.jpg?v=1771040113","url":"https:\/\/www.rocksontherocks.com\/products\/australian-black-opal-silver-pendant-3003","provider":"Rocks On The Rocks","version":"1.0","type":"link"}