This is a black onyx gemstone ring in 925 sterling silver with 6 distinctive groups of 3 beads around the circle head. This ring is also available in moonstone, turquoise and onyx. Nickel and Lead Free, Non Allergenic, Hypoallergenic. Circle head with decorative 3 bead groups Black onyx Several similar onyx rings available. Dimensions: Width=7mm, Stone=5mm Material: 925 Sterling Silver, Onyx