Inner diameter: approximately 16 cm Bead size: approximately 15.8 mm - 16.3 mm Please allow for some margin of error. ⚠ The blue appears darker in photos. The actual color is slightly lighter than the images. These are beautiful, transparent aquamarines. They have been arranged in a color gradient. As these are natural stones, there may be cracks, inclusions, natural indentations, black spots, color unevenness, and minor scratches. Natural stone Natural stone bracelet Designer bracelet Beryl Aquamarine Power stone