Original black obsidian gemstone bracelet. The authenticity of the gemstones is certified by an official quality certificate. Because the beads on the bracelet are cut from genuine minerals, no two beads or bracelets will ever be exactly the same. For illustration purposes, we have also photographed a larger quantity so that you can see the difference and imagine what the finished jewelry will look like, strung on a very strong, elastic silicone cord for you.