This is an authentic CARTIER Platinum Diamond .21ct Solitaire 1895 Engagement Ring size 47 or 4.25. The ring is crafted of platinum and features a knife edge band holding a round brilliant cut diamond weighing approximately .21 carats, with D color and VS1 clarity. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.