What is a necklace without a clasp called?

What a necklace without a clasp is called depends on its design. A necklace that doesn't require a clasp due to its length may be referred to by a general term depending on its size. Examples include 26- to 36-inch opera-length necklaces and rope necklaces, which are longer than 36 inches. Some lariat necklaces tie or loop together in the front instead of fastening closed with a clasp. Explore a wide range of necklaces on 1stDibs.