This is an authentic TIFFANY Platinum Diamond .21ct Solitaire Engagement Ring 45 3.25. The ring is crafted of platinum and features a single prong-set round brilliant-cut diamond, approximately .21 carat, with G color and VS1 clarity grade. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.