Specifications: Material: Rhodium-plated ring with Swarovski crystals; adjustable open band Ring Size (without adjusting): 5 1/2 (US/AU), K 1/2 (British), 51 3/4(French) Diameter of ring head: 7/8" wide X 5/8" high (25mm X 17mm) Colors (Standard Swarovski Color Names): Crystal Clear