Natural Boulder Opal Multi-Color Gemstones 21.40 Ct. Flashing Free Form CabochonTreasure of Gems & Jewelry4.5(262)$1Aug 30, 2026
86.90ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 97YLLazo Heritage4.4(22)$252 days Left
4.26 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 87XLLazo Heritage4.4(22)$252 days Left
2.0Ct Natural Flashy Rainbow Ethiopian Welo Opal, 828BKsmith Heritage Auctioneers4.3(47)$101 day Left
36.54ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 61AYThousandPlanet4.5(305)$101 day Left
1.71Ct Natural Ethiopian Welo Opal - Ethiopian Opal Cabochon, 956MZKsmith Heritage Auctioneers4.3(47)$101 day Left
28.40ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 18AXThousandPlanet4.5(305)$101 day Left
