Inner diameter: approximately 16.3 cm Bead size: approximately 10.9 mm to 11.4 mm Please allow for some margin of error. Brown rutile and limonite are included in the highly transparent crystal. Some beads have garden rutile, making this a unique and beautiful bracelet. As this is a natural stone, there may be cracks, inclusions, natural dents, black spots, color unevenness, and minor scratches. Natural stone Natural stone bracelet Design bracelet Brown rutile quartz Limonite Garden quartz Power stone