This is an authentic TIFFANY 18K Yellow Gold Atlas Open Ring 52 6. This stylish ring from the Atlas Collection, identifiable by its graphic Roman numerals, is crafted of 18 karat yellow gold. This is a beautiful ring for a distinctive look, from Tiffany. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.