Certified 12.78 ct Purple Boulder Opal – Mintabie, Australia | Natural Untreated | Rolling Flash

Exceptional natural purple boulder opal from the legendary opal field of Mintabie, mined in 2025 at the renowned Dita Mine, Western Australia. • Carat weight: 12.78 ct • Gem type: Natural Boulder Opal • Treatment: None – 100% untreated • Shape: Coroidal / organic freeform • Body color: Rare natural purple • Phenomenon: Distinct Rolling Flash with refined, fluid color movement This opal shows strong rolling flashes and an elegant internal structure, making it especially appealing for collectors and high-end custom jewelry. 📜 Certification & Transparency ✔ Accompanied by official certificates of authenticity ✔ Confirmed natural origin and untreated condition ✔ Full documentation clearly viewable for buyer confidence Exactly the gemstone shown – unique, one of a kind. Discreetly offered with full provenance.#opal#boulderopal#purpleopal#australianopal#mintabieopal#naturalopal#untreatedopal#certifiedopal#collectoropal#raregemstone#preciousstone#finegemstone#luxurygem#exclusivegem#oneofakindgem#looseopal#opalgem#opalstone#opalcollector#opaljewelry#highendjewelry#luxuryjewelry#finejewelry#gemstonecollector#bijoux#bijouxluxe#bijouxrares#bijouxdecreateur#joaillerie#hautejoaillerie#pierreprecieuse#opalnaturelle#opaledaustralie#opalcertifie#gemmologie#collectionbijoux#gioielli#gioiellidilusso#altagioielleria#pietrapreziosa#opalenaturale#opaledaustralia#collezionegioielli