Natural Multi Color Ridge Matrix Boulder Opal Gemstones 2.80 Ct. Free Form Cabochon 11.8 x 7 Mm.Treasure of Gems & Jewelry4.4(251)$8Aug 10, 2026
12.26ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 70ATThousandPlanet4.5(300)$52 days Left
9.98 Carats Boulder Opal Cabochon - Intricate Matrix Pattern Specimen, 64XMLazo Heritage4.3(18)$52 days Left
2.73 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 86XLLazo Heritage4.3(18)$52 days Left
14.60ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 75ATThousandPlanet4.5(300)$51 day Left
