ESTATE UNMOUNTED ROUND CABOCHON OPAL GEMSTONE, 16.50CTSAustin Auction Gallery4.7(1.3k)US$150Sep 25, 2026
7.75ct Natural Ethiopian Welo Solid Opal Trillion Cabochon Loose Gemstone, 5TGLazo Heritage4.4(22)US$501672 Lots Away
16.56ct Natural Ethiopian Welo Solid Opal Oval Cabochon, 12TGLazo Heritage4.4(22)See Sold PriceSep 7, 2026
