Arizona Turquoise Ring This handmade ring features a 7mm x 5mm American Mined™ Arizona Turquoise stone bezel mounted E-W on a 6.4mm wide 925 Sterling Silver Flower and Wave pattern band. Average rings are 2 to 2.5mm wide. With wider bands such as this it is generally advised to increase the ring size by 1 size. Oxidized to a Vintage Silver finish. Ring Sizer included. Shipped in gift box. With the Sleeping Beauty mine long closed, American Mined™ Arizona Turquoise, mined in nearby Arizona regions, offers the same classic sky-blue hue and minimal matrix. Turquoise is one of the birthstones for December.