Year: 2016 This is an authentic CARTIER 18K White Gold Diamond Juste Un Clou Ring size 46 3.75. This ring is crafted of 18 karat white gold with brilliant cut diamonds, approximately .13 total carat weight. This is an iconic ring from Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.