{"product_id":"lightning-ridge-crystal-opal-flat-back-studs-australian-one-pair-only","title":"Lightning Ridge Crystal Opal — Flat Back Studs — Australian — One Pair Only","description":"\u003cp\u003eOpal's play-of-color is not pigment. It's physics.\u003c\/p\u003e\n\u003cp\u003eInside an opal, silica spheres arrange into a repeating grid. When the sphere diameter is close to the wavelength of visible light, the grid diffracts white light into spectral components — reflecting specific colors back at specific angles. The same principle as a soap bubble, stable in silica for millions of years. These are Australian Lightning Ridge crystal opals: transparent body, color firing from within.\u003c\/p\u003e\n\u003cp\u003eMatched pair, 4mm rounds, bezel-set in a press-fit flat back. The bezel wall protects the opal's perimeter — opal is softer than most gemstones and the bezel is the correct setting. One pair only.\u003c\/p\u003e\n\u003cp\u003eCare: Remove before swimming, bathing, harsh chemicals. Avoid rapid temperature changes. Store consistently cool.\u003c\/p\u003e\n\u003cp\u003eTreatment: None  ·  Origin: Lightning Ridge, New South Wales, Australia\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eInv # · Box\u003c\/th\u003e\n\u003cth\u003eCarat\u003c\/th\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003eCut\u003c\/th\u003e\n\u003cth\u003eTreatment\u003c\/th\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInv #51 · Box —\u003c\/td\u003e\n\u003ctd\u003e~0.2ct ea\u003c\/td\u003e\n\u003ctd\u003e4mm round ea\u003c\/td\u003e\n\u003ctd\u003eRound cabochon\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eLightning Ridge, NSW Australia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e14k Yellow\u003c\/th\u003e\n\u003cth\u003e14k Rose\u003c\/th\u003e\n\u003cth\u003e\u003cbr\u003e\u003c\/th\u003e\n\u003cth\u003e14k W. Palladium\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e$1,475 pair\u003c\/td\u003e\n\u003ctd\u003e$1,475 pair\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd\u003eConfirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eDiamond accent:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e+$150 — a single bezel-set diamond added below the stone as a drop (as shown in the render). Bezel, star, or prong setting. Note at checkout.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRecommended Setting\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eFlat back stud (press-fit, threadless) — bezel is the correct setting for opal; protects the perimeter at 5.5–6.5 Mohs hardness\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cstrong\u003eMetals:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e14k Yellow Gold · 14k Rose Gold · 14k Palladium White Gold\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePost lengths — 14k Yellow \u0026amp; 14k Palladium White:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e5mm · 6mm · 7mm · 8mm · 9mm · 10mm\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cstrong\u003ePost lengths — 14k Rose Gold:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e5mm · 6mm · 8mm only\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cstrong\u003ePost gauge:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e18G · 3mm pad OD · Press-fit (threadless) flat back · Semi-polished die-struck\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLobe · Helix · Conch · Tragus · Cartilage\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cstrong\u003eProduction time:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e8–12 weeks · Final price confirmed before production begins\u003c\/div\u003e\n\u003cp\u003ePhotography: All stone photos taken in natural sunlight and natural indoor light to show true color. 3D setting render by Facet Flow.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cem\u003eWant this stone in a different form, or looking for something similar? Reach out to BravaisFineJewelry@gmail.com— details in the FAQ.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan style=\"color: rgb(48, 128, 248);\"\u003e\u003cstrong\u003eSelect your stone and metal choice. Note your preferred finish (Smooth, Brushed, Hammered, Hand Carved) and post length (6-10mm YG and WG, 6-8mm RG) in the order notes at checkout — or email me and we'll discuss.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bravais Fine Jewelry","offers":[{"title":"#138 1.55ct \/ 14k Yellow Gold","offer_id":44332196823123,"sku":null,"price":1475.0,"currency_code":"USD","in_stock":true},{"title":"#138 1.55ct \/ 14k Rose Gold","offer_id":44332196855891,"sku":null,"price":1475.0,"currency_code":"USD","in_stock":true},{"title":"#138 1.55ct \/ 14k White Palladium Gold","offer_id":44332196888659,"sku":null,"price":1475.0,"currency_code":"USD","in_stock":true},{"title":"#139  0.85ct \/ 14k Yellow Gold","offer_id":44332196921427,"sku":null,"price":1475.0,"currency_code":"USD","in_stock":true},{"title":"#139  0.85ct \/ 14k Rose Gold","offer_id":44332196954195,"sku":null,"price":1475.0,"currency_code":"USD","in_stock":true},{"title":"#139  0.85ct \/ 14k White Palladium Gold","offer_id":44332196986963,"sku":null,"price":1475.0,"currency_code":"USD","in_stock":true},{"title":"#140 0.75ct \/ 14k Yellow Gold","offer_id":44332197019731,"sku":null,"price":1475.0,"currency_code":"USD","in_stock":true},{"title":"#140 0.75ct \/ 14k Rose Gold","offer_id":44332197052499,"sku":null,"price":1475.0,"currency_code":"USD","in_stock":true},{"title":"#140 0.75ct \/ 14k White Palladium Gold","offer_id":44332197085267,"sku":null,"price":1475.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/9325\/3459\/files\/facet-flow-generated4mmlighteningridgeopalheartflatbackstuds.jpg?v=1775091486","url":"https:\/\/bravaisfinejewelry.org\/products\/lightning-ridge-crystal-opal-flat-back-studs-australian-one-pair-only","provider":"Bravais Fine Jewelry","version":"1.0","type":"link"}