This is an authentic CARTIER Platinum Diamond 1.05ct Solitaire 1895 Engagement Ring 51 5.75. The ring is crafted of platinum and features a 1.05 carat round brilliant cut diamond with G color and VVS1 clarity in a four round prong setting. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.