Item #: 456165 This is an authentic CARTIER 18K Pink Gold 4mm Happy Birthday Band Ring 58 8.25. The ring is crafted of 18 karat pink gold and features the Cartier double C logo engraved throughout the band in an assortment of sizes. This is an elegant ring with the classic style of Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.