Large Southwestern Natural Turquoise Ring in Sterling Silver Size 10

Vintage Southwestern sterling silver ring that is set with an unusual natural turquoise stone that is turquoise and brown. It has dark brown matrix lines as well. Stone is set in a plain bezel and has a strong shank that was hand formed and cold chisel split. (Stone may be from the Tortoise Mine)

Size: 10 Face measures 1 1/8" by 7/8" The dome of the staon stands up 1/2". Weight: 23.1 grams. No hallmarks. Acid tested.