Item #: 1312806 This is an authentic TIFFANY Platinum Diamond Blue Sapphire Eternity Band Ring 48 4.5. The ring is crafted of platinum and features blue sapphires alternating between round brilliant cut diamonds weighing approximately .36 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.