Item #: 610427 This is an authentic TIFFANY Platinum Diamond 1.89ct Solitaire Engagement Ring size 51 or 5.75. The ring is crafted of platinum and features a single round brilliant cut diamond weighing approximately 1.89 carats with I color and VS1 clarity. Enjoy this classic ring with the sophisticated style only from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.