Item #: 411348 This is an authentic TIFFANY 18K Yellow Gold Diamond Infinity Ring 51 5.75. This ring is made of 18 karat yellow gold and has a infinity symbol that is lined with diamonds weighing approximately .13 total carat weight. This is a stylish ring to add to your collection from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.