This is an authentic TIFFANY Sterling Silver Blue Enamel Knot Key Pendant Necklace. This lovely necklace is crafted of sterling silver and features a blue enamel link chain holding a cutout knot motif pendant in matching Tiffany blue enamel. Enjoy this necklace for a splash of style, only from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.