Inner diameter: approximately 16 cm Aquamarine with matrix: approximately 12 mm (early part of the range) Blue lace agate: approximately 16.2 mm Please allow for some margin of error. The arm section features milky aquamarine with orange-beige matrix. It's a rare and lovely color. A single beautiful patterned blue lace agate is used for the top part. As these are natural stones, there may be cracks, inclusions, natural indentations, black spots, color unevenness, and minor scratches. Natural stone Natural stone bracelet Design bracelet Aquamarine Matrix aquamarine Beryl Blue lace agate Power stone