Coastal Jewelry Black Matte Onyx Beaded Stretch Bracelet (10mm) Add this stylish sharp and handsome bracelet to your wardrobe. This jewelry item features matte black natural onyx stone beads. The natural stones have a fresh cool and smooth touch. The stones also have spiritual wellness and healing properties. This bead bracelet contours well into the shape of your wrist for a comfortable wear. The bracelet has a total of 21 stones and each stone is about 10mm wide.