This is an authentic TIFFANY Sterling Silver Heart Tag Toggle Necklace. The necklace is crafted of sterling silver and features a heart tag charm and a large toggle clasp. PLEASE NOTE: The pendant has letters 'C.S.B' engraved by Tiffany & Co. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.