This versatile, marcasite encrusted necklace is fashionable as is, but can be enhanced with a beautiful pendant as well. The ring opens and allows for the addition of a pendant. Marcasite History: Marcasite jewelry has been made since the time of the Ancient Greeks. It came into fashion in the eighteenth century, the Victorian era and with Art Nouveau jewelry designers. Length: 18″ Chain Gauge: 2mm Clasp: Lobster Metal: .925 Sterling Silver Stone: Marcasite