Item #: 1111753 This is an authentic TIFFANY Platinum Diamond .18ct Solitaire Engagement Ring 49 4.75. The ring is crafted of platinum and features a knife edge band set with a single round brilliant cut diamond weighing approximately .18 carat with VS1 clarity and F color. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.