This is an authentic CARTIER 18K Yellow Gold Tsavorite Onyx Panthere De Cartier Ring 57 8. The ring is crafted of 18 karat yellow gold and features a panther motif band accented with tsavorite garnet eyes and a black onyx nose. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.