This Beautiful Handcrafted Necklace features the following top-quality materials: Beautiful 12,10,8,6 and 4mm Turquoise Mountain Jade Beads.(Mountain Jade is a high grade dolomite Marble that comes from Asia). 4mm & 3mm Silver Corrugated Melon Beads. Sterling Silver Clasp. Silver Plated Crimp Bead Covers. Necklace measures 30" in total length. Put together with Beadalon 49 strand bead stringing wire for more durability and flexibility.