Natural Black Star Sapphire 3.50 Ct. Oval Cabochon Shape 9.5 x 7.7 Mm Gemstone From ThailandTreasure of Gems & Jewelry4.4(220)$1Mar 08, 2026
BANDED AGATE CABOCHON ROCK STONE LAPIDARY SPECIMENCol. Christie Hatman Auctioneers4.3(488)$42 days Left
PIETERSITE CABOCHON ROCK STONE LAPIDARY SPECIMENCol. Christie Hatman Auctioneers4.3(488)$52 days Left
4.71ct AFRICAN BLACK OPAL OVAL CABOCHON CUT NATURAL UNTREATED RARE 13x10mmModern Jewelry4.4(204)$3,300Mar 19, 2026