The wearing of charms may have begun as a form of amulet or talisman to ward off evil spirits or bad luck. During the pre-historic period, jewellery charms would be made from shells, animal bones and clay. … Medieval knights wore charms for protection in battle.
In 1889, Tiffany and Co. introduced their first charm bracelet — a link bracelet with a single heart dangling from it, a bracelet which is an iconic symbol of Tiffany today.
Today mewe-jewellery sell over 1300 charms all pandora compatible made with only the fines metals and gems see more here charms