ESTATE UNMOUNTED ROUND CABOCHON OPAL GEMSTONE, 16.50CTSAustin Auction Gallery4.7(1.3k)US$150Sep 25, 2026
2.17ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 86TGLazo Heritage4.4(22)US$252 days Left
2.50ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 73TGLazo Heritage4.4(22)US$252 days Left
Natural Multi Color Opal Gemstones 3.03 Ct. Oval Shape 12.6 x 9.2 Mm.Treasure of Gems & Jewelry4.5(267)US$1Sep 12, 2026
Natural Multi Color Opal Gemstones 3.58 Ct. Oval Shape 12.5 x 10.4 Mm.Treasure of Gems & Jewelry4.5(267)US$1Sep 12, 2026
1.80ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 73FXThousandPlanet4.5(310)US$1013 hrs Left
