This is an authentic CARTIER 18K Yellow Gold Diamond Juste Un Clou Ring size 51 or 5.75. The ring is crafted of 18 karat yellow gold and features a curved nail motif band set with round brilliant cut diamonds, approximately .13 total carat weight. PLEASE NOTE: One diamond on the nail head has been replaced. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.