6.25CT NATURAL UNTREATED WHITE MULTI COLORED OPAL CABOCHON FREEFORMModern Jewelry4.4(205)US$245Mar 19, 2026
AQUA CHALCEDONY ROCK STONE LAPIDARY SPECIMENCol. Christie Hatman Auctioneers4.3(488)See Sold PriceFeb 22, 2026
QUARTZ ROCK STONE LAPIDARY SPECIMENCol. Christie Hatman Auctioneers4.3(488)See Sold PriceFeb 22, 2026