This is an authentic TIFFANY 18K Rose Gold Diamond Lock Ring size 56 or 7.5. The ring is crafted of 18 karat rose gold and features a polished lock motif band with one half set with diamonds, approximately .15 total carat weight. PLEASE NOTE: Due to the oval shape of this ring, it may fit slightly larger. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.