Crafted by hand with premium (and sexy) 6mm matte onyx, polished onyx, or lava beads. Each is accented with hematite and raw black tourmaline and finished with a sterling silver lobster claw clasp (marked 925) and findings. Choose your length: 18, 20, 22, and 24 inches Choose your primary beads: matte onyx, polished onyx, or lava stone. Each necklace is made to order and packed and shipped with both speed and care.