Item #: 1265552 Year: 2014 This is an authentic CARTIER 18K Pink Gold 4mm Happy Birthday Band Ring size 51 or 5.75. The ring is crafted of 18 karat pink gold and features the Cartier logo engraved throughout the band. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.