Item #: 1789765 This is an authentic TIFFANY Platinum Diamond Schlumberger Lynn Ring 54 6.75. The ring is crafted of platinum, and features an 'X' motif framed by four round brilliant cut diamonds weighing approximately .22 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.