Arizona Mined Turquoise Ring. This handmade ring features an 6mm Genuine Arizona Mined Turquoise stone, bezel mounted on a skinny 1mm wide 14K Gold Filled Plain band. Polishing cloth and 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. Gold filled "14/20" refers to the industry shorthand describing the resulting material. The first number is the karat purity of the gold used; the second number is the amount, by weight, of gold to the substrate material. "14/20" gold-filled material is made with 14-karat gold and the gold represents 1/20th (or 5%) of the total weight of the material.