This absolutely breathtaking necklace is made from green mystery beads with Swarovski crystals between, and the pendant is chalcedony (pronounced Kal-sid'-on-ee) set in sterling silver. The necklace measures 16 inches long and can be adjusted 2 inches longer. The pendant measures 1 5/8" long not including the bail, and 15/16" wide. The clasp and chain are sterling, tested with a strong magnet. I think the green beads are either gaspeite or dyed howlite. If they are gaspeite, this necklace would be priced at least double of what I am offering it for here, so you might be getting a steal. The necklace you see in the photo is the actual necklace you will receive.