This is an authentic TIFFANY Platinum Diamond .34ct Solitaire Engagement Ring size size 50 or 5.5. The ring is crafted of platinum and features a single prong-set round brilliant cut diamond, approximately .34 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.