Item #: 1428957 This is an authentic TIFFANY Platinum Diamond .80ct Solitaire Engagement Ring 49 5. The ring is crafted of platinum and features a single round brilliant cut diamond weighing approximately .80 carats, with G color and VVS1 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.