Item #: 555369 This is an authentic TIFFANY Platinum Diamond .37ctw Half Circle Wedding Band Ring 49 5. The ring is crafted of platinum and features a channel set half diamond band with a total approximate carat weight of .37 carats. This is a beautiful ring with an elegant style only from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.