With its range of silver, gold, white gold and diamond jewelry, Tiffany & Co.'s lock pendants are just a small addition to an already large family of charms. Tiffany lock pendants come in a range of materials and prices. The design is a simple yet elegant lock that opens and closes. Original Tiffany lock pendants always open and they have the company logo engraved somewhere on the bottom or the side as either Tiffany & Co. or T&Co with additional details such as 1837 (the year Tiffany & Co. was established). As Tiffany would say, "With this popular Tiffany motif, one is never lost."
Take off the necklace with the Tiffany lock pendant for better access if you are wearing it.
Locate a small button on the side of the charm. Original Tiffany lock pendants will always have this button. The only Tiffany lock pendants that will not open up are the mini lock pendants.
Press the button gently and the lock will open.
Attach the lock to the chosen necklace or bracelet unless you removed it for cleaning or other purposes.
Close the lock by gently snapping it into place until you hear a slight click, according to a Tiffany & Co. representative.