Item #: 1879820 This is an authentic TIFFANY Platinum Diamond 1.85ct Solitaire Engagement Ring 52 6. The ring is crafted of platinum and features a single round brilliant cut diamond weighing approximately 1.85 carats with H color and VS2 clarity. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.