Natural Multi Color Flashing Boulder Opal Gemstones 4.44 Ct. Oval Cabochon Shape 11.7 x 10.3 Mm.Treasure of Gems & Jewelry4.4(233)$1May 31, 2026
1.66 Carats Electric Green Web Matrix Boulder Opal - Natural Australian Stone, LZ47ThousandPlanet4.6(277)$51 day Left
8.51 Carats Boulder Opal Cabochon - Natural Matrix & Play-of-Color Specimen, 57XMThousandPlanet4.6(277)$51 day Left
2.55 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 11.8x6.8mm, 9XMThousandPlanet4.6(277)$51 day Left
2.22Ct Welo Black Opal Faceted Polished - Ethiopian OpalKsmith Heritage Auctioneers4.3(47)See Sold PriceJul 26, 2025
2.07Ct Welo Black Opal - Ethiopian Opal - Faceted PolishedKsmith Heritage Auctioneers4.3(47)See Sold PriceJul 27, 2025