A necklaces is a form of jewelry worn suspended around the neck. It is most commonly made in flexible forms such as a chain, as a string of beads, pearls, gemstones, or other natural materials, or made of a more inflexible band of metal embellished with gemstones, pearls necklace , beads, or other techniques such as engraving, filigree, repoussé, granulation, for example. Lengths of necklaces vary, and specific types related to extremes in length range from a short choker or dog collar necklace that fits right around the main portion of the neck to a longer neck chain or string of beads called a sautoir, sometimes worn hanging down to or past the waist.