Well, this is a COOL ring! Likely made in the American Southwest - perhaps Native American based on maker?s mark but one we have not yet been able to identify. A large bead of dichroic glass sits and sound on top of a ring made from two parts. While the ring is on your finger the two parts will not come apart however if you take the ring off and move either half of the band 180 degrees, the ring will come apart. The glass bead rotates around though it does stop on one side. This is just a really unique and uber interesting ring. Likely artisan made as even a Google Lens could not come up with anything even remotely similar. Fits a size 7 finger. See photos. Will ship USPS with tracking to winning buyer