This is an authentic CARTIER Platinum Diamond .31ct Ballerine Engagement Ring 52 6. This ring is crafted of platinum and features a center round brilliant cut diamond weighing approximately .31 carat, with G color and VS1 clarity. The ring also has additional accent diamonds, approximately .03 total carat weight. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.