An island of spiny oyster shell floats at the center of an azure lake of natural Kingman turquoise banked by sterling silver. Crafted by Jesse Robbins, the precisely fitted mosaic is flanked by sterling spheres on a handstamped double-shank band. Handmade in USA. Exclusive. Whole sizes 5-9. 1/2" tapers to 1/4", 1" setting.