What fashion house designed the iconic 'Return to Tiffany' heart tag necklace?

What fashion house designed the iconic “Return to Tiffany” heart tag necklace? The answer is Tiffany & Co.

The Return to Tiffany heart tag necklace is a Tiffany & Co. design and part of the brand’s own Return to Tiffany collection. Its identity comes from an earlier practical object: Tiffany began selling key tags in 1966 engraved with a registration number and the message “Please Return to Tiffany & Co. New York.” If lost keys were found, the tag could help reunite them with their owner through the Tiffany flagship store.

A heart-shaped version appeared in Tiffany advertising in 1966, and Tiffany introduced its first jewelry design using the Return to Tiffany tag in 1980: a 14-karat yellow-gold heart pendant on a box chain necklace. Later versions expanded into sterling-silver pendants, bracelets, rings, earrings, and toggle necklaces.

People sometimes confuse the collection with an individual designer’s signature line, such as Elsa Peretti or Jean Schlumberger. Those designers created important Tiffany collections, but Return to Tiffany is identified as a house collection built around Tiffany’s own registered motif and New York heritage.