Natural Multi Color Flashing Boulder Opal Gemstones 19.77 Ct. Free Form Cabochon Shape 32 x 17 Mm.Treasure of Gems & Jewelry4.5(265)US$1Sep 12, 2026
Natural Boulder Opal Multi-Color Gemstones 21.40 Ct. Flashing Free Form CabochonTreasure of Gems & Jewelry4.5(265)US$1992 Lots Away
*7.99Ct Welo Black Opal Polished - Ethiopian Opal - Oval Cabochon , 59EKsmith Heritage Auctioneers4.4(49)US$504 days Left
*8.43Ct Welo Black Opal Polished - Ethiopian Opal - Round Cabochon , 60EKsmith Heritage Auctioneers4.4(49)US$504 days Left
