Item #: 1004510 This is an authentic TIFFANY 18K Yellow Gold Platinum Diamond Schlumberger Sixteen Stone Ring 50 5.25. The ring is crafted of 18 karat yellow gold and platinum set with sixteen sparkling round brilliant cut diamonds, approximately 1.14 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.