This is an authentic TIFFANY Sterling Silver Diamond Locks Ring size 53 or 6.25. The ring is crafted of sterling silver and features a key cutout detail with the T&Co logo engraved on the band along with two round brilliant cut diamonds, weighing approximately .03 total carat weight. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.