Sterling silver, Tourmaline, Labradorite, rose quartz heart on the side, Chrisoprase, Peridot, Blue Quartz drop, Smoky crystals on back. You can live on it.  18 inches adjustable. Lobster clasp with bead detail and name tag. One of a kind hand made in usa. See Stone link for Chakra and healing properties . Hand made with love in NYC -USA