Be prepared to be surprised as chalcedony stone is photochromatic and will change colors from purple to blue as you move from natural to UV light. Alternating barrel weave with stone links finished with a secure button clasp closure. The chainmaille is 1/10th silver-filled with a silver plated clasp (best available for this patented design). Overall length is approximately 7.5". Please message me if you have questions or request a custom length, stone or metal. Style B16.