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Natural Multi Color Sparkling Matrix Boulder Opal Gemstones 3.35 Ct. Free Form Cabochon Shape 10.2 xTreasure of Gems & Jewelry4.4(249)$1Jul 24, 2026
5.01 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 12.2x9.6mm, 8XMLazo Heritage4.2(11)$251 day Left
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6.02ct Natural Australian Queensland Matrix Boulder Opal Triangular Cabochon, 54AXThousandPlanet4.5(297)$1044 mins Left
30.45ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 7AVThousandPlanet4.5(297)$1044 mins Left
2.07Ct Welo Black Opal - Ethiopian Opal - Faceted PolishedKsmith Heritage Auctioneers4.3(47)See Sold PriceJul 27, 2025
1.51Ct Welo Black Opal Polished - Ethiopian OpalKsmith Heritage Auctioneers4.3(47)See Sold PriceJul 26, 2025
