This is an authentic TIFFANY 18K Yellow Gold Platinum Diamond Schlumberger Rope 3 Row X Ring 50 5.25. The ring is crafted of 18 karat yellow gold detailed with a platinum "X" enhanced with round brilliant cut diamonds, approximately .28 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.