Find TIFFANY & CO. Lock 18ct Yellow-gold Earrings 1 Size on Editorialist. Since it was founded in 1837 and up until the 50s, Tiffany & Co. produced functional padlocks, and the latest contemporary iteration comes in the form of the gleaming Lock earrings. A far cry from robust archival designs, the pair's sleek and fluid lines symbolise inclusivity and togetherness. They're imagined in polished 18-carat yellow gold and kept free from fussy details.Tiffany & Co. Lock 18ct yellow-gold earrings100% 18ct yellow goldHinged-snap fasteningPolished finish, sold as a pair, lock designDimensions: mediumMade in ItalyPlease use a soft, dry polishing clothWe regret that for hygiene reasons, earrings cannot be exchanged or refunded, unless faulty.