This is an authentic TIFFANY 18K Rose Gold Diamond Narrow Atlas Closed Ring 46 3.75. This stylish ring is crafted of 18 karat rose gold and features Roman numerals along the band and a round brilliant cut diamond weighing approximately .10 carats. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.