This beauty is all about contrast and dimension with a checkerboard-cut genuine onyx stone shimmering with facets for days. Sitting atop an openwork band with ornate detailing, this ring is one you'll love to show off. Sterling silver. Sizes 6-10. Main Stone - 1 Emerald Checker Board Cut Genuine Black Onyx, 20 mm x 15 mm Sterling Silver Contains 6.50 grams of Sterling Silver Shank Width - 3.0 mm wide Dimensions - 21 mm wide x 20 mm long x 8 mm high Includes gift box and drawstring pouch