A necklace is a piece of jewelry that is worn around the neck. It typically consists of a metal chain or cord from which hangs a pendant, medallion, or other decorative element. Necklaces can be made out of various materials such as gold, silver, platinum, pearls, gemstones, glass, leather, and more. They come in different styles including chokers, princess lengths, matinee lengths, opera lengths, and ropes. Necklaces are worn for adornment, fashion, cultural or religious reasons, and can be passed down as family heirlooms.