Item #: 1475329 This is an authentic TIFFANY Platinum Diamond 3.5mm Forever Half Circle Band Ring size 51 or 5.75. The ring is crafted of platinum and features a half band of round brilliant cut diamonds weighing approximately 0.91 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.