Item #: 442758 Year: 2000 This is an authentic CARTIER 18K Yellow Gold Citrine Tank Ring 54 7. The ring is crafted of 18 karat yellow gold and features a single square citrine cabochon centered along a polished Tank motif band. This is a beautiful ring with the modern style of Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.