Rope chains are necklaces that can be worn alone or with a pendant, and are popular in a variety of lengths and thicknesses. Gold rope chains are probably most frequently thought of as being yellow gold jewelry, although white gold rope chains are a favorite option.
Rope chains come in a variety of lengths, the most common being 16, 18, 20, 22 and 24 inches. The length you choose is based largely on personal preference, but certainly the neckline of your clothing must come into play here (unless you want your chain hidden). The most common pendant length sold is 18 inches.