This is an authentic CARTIER Platinum .53ct Diamond Solitaire Engagement Ring 48 4.5. This ring is crafted of platinum and showcases an internally flawless, F Color, .53 carat round brilliant cut diamond in a four prong solitaire setting. This is a gorgeous ring with a classic look only from Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.