A lamen is a magical symbol suspended from a chain or collar and worn on the chest. It is a symbol of authority and is often worn during rituals.

A lamen is usually a round disk rather than any other shape and is usually made of metal, although there are no restrictions on what materials can be used. The disk will have a symbol (or symbols) on it. Sometimes the lamen will have words inscribed on it instead. It is not unusual to find a combination of symbols and words.