Gleaming genuine onyx beads make your birthstone cross and bead pop. A sleek twist for your birthstone. Stretchable 8" length. Silvertone. Birthstones are simulated.Features - Main Stone - 14 Round Cabachon Cut Genuine Black Onyx, 10 mm x 10 mm Accent Stone - 46 Simulated Birthstones Silvertone Measures - 10 mm wide x 8 inches long x 10 mm high Includes gift box and drawstring pouch Silvertone Dimensions - 10 mm wide x 8 inches long x 10 mm high Includes gift box and drawstring pouch