Natural Multi Color Sparkling Matrix Boulder Opal Gemstones 3.35 Ct. Free Form Cabochon Shape 10.2 xTreasure of Gems & Jewelry4.4(250)$1Jul 24, 2026
12.26ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 70ATThousandPlanet4.5(298)$102 days Left
6.02ct Natural Australian Queensland Matrix Boulder Opal Triangular Cabochon, 54AXThousandPlanet4.5(298)$102 days Left
1.74Ct Welo Black Opal Polished - Ethiopian OpalKsmith Heritage Auctioneers4.3(47)See Sold PriceJun 29, 2025
1.75Ct Welo Black Opal Polished - Ethiopian OpalKsmith Heritage Auctioneers4.3(47)See Sold PriceJun 29, 2025
