Inner diameter: Approximately 15.5 cm Bead size: Approximately 18.1 mm - 19.8 mm Please allow for some margin of error. This is a one-of-a-kind bracelet made by connecting aquamarine beads, drilled from spheres. Recommended for those who like stones with unique and distinctive matrix inclusions. Due to the large bead size, fine adjustments to the inner diameter are not possible. 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 Sphere Aquamarine Beryl Aquamarine with matrix Matrix aquamarine Power stone