This is a fantastic "must have" accessory for any outfit. The bracelet is made from genuine black onyx beads with 14k gold spacer beads and clasp. It measures 7 1/2 inches long and the onyx beads are 7mm wide. The clasp is marked 14k twice and have been tested however the two bead tips at the end of the strands are plated. I have a necklace that matches this bracelet beautifully!