Year: 2002 This is an authentic CARTIER 18K White Gold Peridot Tank Ring size 54 or 6.75. The ring is crafted of 18 karat white gold and features a high polished band with a split bezel-set square peridot stone. This is a beautiful ring with the elegant style of Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.