Item #: 422315 This is an authentic CARTIER 18K Yellow Gold Tsavorite Onyx Panthère De Cartier Bypass Ring 54 6.75. This fiercely fashionable design from the Panthère de Cartier collection is crafted of 18 karat yellow gold and features a black onyx nose, and two Tsavorite eyes. This stunning ring makes for the perfect accessory for any occasion, with the classic style only from Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.