Natural Multi Color Flashing Boulder Opal 19.77 Ct. Free Form Cabochon Shape 32 x 17 Mm GemstoneTreasure of Gems & Jewelry4.4(225)US$14 days Left
6.81Ct Welo Black Opal Polished - Ethiopian Opal - Pear Cabochon , 45EKsmith Heritage Auctioneers4.3(46)US$104 days Left
5.16Ct Welo Black Opal Polished - Ethiopian Opal - Pear Cabochon , 36EKsmith Heritage Auctioneers4.3(46)US$10(1 bid)4 days Left
6.75Ct Koroit Matrix Boulder Opal Polished - Australian Opal - Oval Cabochon , 125EKsmith Heritage Auctioneers4.3(46)US$103 days Left
