3.17 Ct Natural Black Flashing Fire "Midnight Spark" Opal Oval CabGems Auction4.7(439)$1(1 bid)May 01, 2026
8.50Ct Welo Black Opal Polished - Ethiopian Opal - Oval Cabochon , 61EKsmith Heritage Auctioneers4.3(47)$10(1 bid)4 days Left
3.02Ct Welo Black Opal Polished - Ethiopian Opal , 43EKsmith Heritage Auctioneers4.3(47)$105 days Left