This bracelet is made with a 10mm lapis lazuli stone and 6mm lapis lazuli and amethyst bead stones. All of these stones are genuine. It is strung on high endurance stretch elastic and measures 7 inches and is quality tested for durability. Beneficial in yoga, meditation, chakra balancing, reiki and energy work. Lapis Lazuli is a stone of communication that can bring truthfulness, openness, and mental clarity. Amethyst increases psychic ability and intuitive powers plus it promotes a calm mind and deep sleep. Amethyst cleanses the aura and chakras and dissipates negative energies.