The two inch nautilus shell pendant was fabricated in Bali, Indonesia.  Black resin was used to strength the delicate chambers which can be seen on the backside of the necklace.  The air chambers are arranged in a mathematical formula for use going up and down in the ocean.  Black rondelle crystals, rhinestone rondelles, sterling silver beads, chain and lobster clasp make this necklace adjustable from 18-20 inches.