Item #: 547242 This is an authentic CARTIER 18K Pink Gold Juste Un Clou Ring size 51 or 5.75. The ring is crafted of 18 karat pink gold and features the shape of a gracefully bent nail. This is a fabulous ring with a distinctive look from Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.