Double adjustable from 15 to 16 ot 17 inches! This 14 karat gold plated sterling silver necklace has a mother of pearl crescent. Crescent measures 13.3mm x 13mm and hangs from a cubic zirconia-accented bale on a 1.2mm cable chain. Spring ring clasp. ABOUT THE NAJA SYMBOL - Naja is a genus of cobras and this symbol was adopted by the Navajo as a crescent form used in squash-blossom necklaces. In Paleolethic times, it has represented the Phoencian goddess of fertility and in the Book of Judges in the Bible, was worn as ornaments on camels' necks. The Moors used it in a horse's bridal to protect the horse and rider from the "evil eye". Crescent Moon - The word crescent means to grow and increase. The Crescent Moon symbolizes new beginnings and the making of dreams into reality. It is also connected to rebirth and how our true essence really is immortal.