This is an authentic TIFFANY Platinum Diamond 1.33ct Schlumberger Sixteen Stone Ring size 56 or 7.75. The ring is crafted of platinum and features an X motif alternating between round brilliant cut diamonds weighing approximately 1.33 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.