Tiffany & Co. Return to Tiffany Blue Enamel Heart Toggle Bracelet! It features a sterling silver chain with a toggle clasp and a heart-shaped charm. The heart charm is made of sterling silver and features a Tiffany Blue® enamel finish, with "Return to Tiffany" engraved on it. The bracelet and charm are primarily made of sterling silver, with enamel detailing on the heart It is part of the iconic "Return to Tiffany" collection, known for its heart tag designs!