4.90 Carats Natural Black Fire Opal Loose Stone ? Vibrant Flashing Colors - 14X11X7.5 mmFantasy Jewelry3.8(146)$982 days Left
Natural Multi Color Sparkling Matrix Boulder Opal Gemstones 3.35 Ct. Free Form Cabochon Shape 10.2 xTreasure of Gems & Jewelry4.4(250)$16 days Left
3.08 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 12.8x9.3mm, 2XMLazo Heritage4.3(13)$25(1 bid)1 day Left
5.01 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 12.2x9.6mm, 8XMLazo Heritage4.3(13)$251 day Left
12.26ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 70ATThousandPlanet4.5(298)$1011 hrs Left
9.12ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 21AVThousandPlanet4.5(298)$1011 hrs Left
1.70Ct Welo Black Opal Polished - Ethiopian OpalKsmith Heritage Auctioneers4.3(47)See Sold PriceJun 29, 2025
2.35Ct Welo Black Opal Polished - Ethiopian OpalKsmith Heritage Auctioneers4.3(47)See Sold PriceJul 26, 2025
LARGE 18.5 CARATS NATURAL AUSTRALIAN FIRE OPAL LOOSE STONE 29MM X 22MMModern Jewelry4.5(215)$3501 day Left
