Special reminder: When placing an order, please make sure to indicate the length of your bracelet you want. This product is a natural crystal that produces black spots and cracks during growth and polishing, which are natural phenomena and not defects. Please choose and purchase carefully Basic information ：  Bracelet diameter: 1.91 inch(Multiple lengths to choose from)Bead diameter:0.06 inchNumber of beads: 18 pieces Color: colourlessMaterial: Natural CrystalWeight: 25.27g   Note: The size is measured manually and there may be slight differences