Artisans from Bali, Indonesia handcrafted this pendant. Clear blue resin was placed in a half shell of nautilus shell then polished to partically remove the shell enhancing the patterned shell chambers. The bail is sterling silver. Turquoise Czech crystals, gray fresh water pearls, and silver colored pewter beads complete this necklace. The sterling silver lobster clasp and chain adjustable from 18 to 20 inches. When the pendant is flipped to the backside, the nautilus chamber forms a beautiful swirl and some might even enjoy wearing it "backwards".