Item #: 1387159 This is an authentic TIFFANY Platinum 18K Yellow Gold Diamond Schlumberger Sixteen Stone Ring size 53 or 6.25. The ring is crafted of 18-karat yellow gold and platinum and features sixteen round brilliant cut diamonds weighing approximately 1.12 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.