Natural Multi Color Sparkling Matrix Boulder Opal Gemstones 3.35 Ct. Free Form Cabochon Shape 10.2 xTreasure of Gems & Jewelry4.4(250)$17 days Left
3.08 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 12.8x9.3mm, 2XMLazo Heritage4.3(13)$25(1 bid)2 days Left
5.01 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 12.2x9.6mm, 8XMLazo Heritage4.3(13)$252 days Left
9.12ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 21AVThousandPlanet4.5(298)$1022 hrs Left
30.45ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 7AVThousandPlanet4.5(298)$1022 hrs Left
2.35Ct Welo Black Opal Polished - Ethiopian OpalKsmith Heritage Auctioneers4.3(47)See Sold PriceJul 26, 2025
1.70Ct Welo Black Opal Polished - Ethiopian OpalKsmith Heritage Auctioneers4.3(47)See Sold PriceJun 29, 2025
