Item #: 1413400 This is an authentic TIFFANY Platinum Diamond .53ct Solitaire Engagement Ring size 49 or 5. This ring is crafted of platinum and features a knife edge band and a six prong set solitaire round brilliant cut diamond, approximately .53 carats, with I color and VS2 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.