Natural Boulder Opal Multi-Color Gemstones 21.40 Ct. Flashing Free Form CabochonTreasure of Gems & Jewelry4.5(262)$1Aug 30, 2026
Natural Multi Color Flashing Boulder Opal Gemstones 3.49 Ct. Free Form Cabochon ShapeTreasure of Gems & Jewelry4.5(262)$10Aug 30, 2026
5.01 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 12.2x9.6mm, 8XMLazo Heritage4.4(22)$251 day Left
4.34 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 13.3x9.3mm, 4XMLazo Heritage4.4(22)$251 day Left
14.88ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 18AVThousandPlanet4.5(304)$1010 hrs Left
