Luminescent rubellite hydroquartz, hand knotted on black cord (heat set delicate nylon thread with strong durability and resistance to fraying), 14kt gold filled findings ...as natural materials are used, there will be variations between necklaces...this cord is strong but also very thin and light weight, its meant to look like the shell is almost floating on the neckline... ★ MEASUREMENT ★ teardrop: about 14mm