Item #: 373875 This is an authentic TIFFANY Platinum Diamond Half Band Ring size 48 or 4.5. This stunning platinum ring features a half circle of round brilliant cut diamonds weighing approximately .29 total carat weight. Enjoy this classic wedding band, from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.