Huge Vintage Navajo Green Turquoise Ring in Sterling Silver Size 9

Huge vintage Navajo sterling silver ring set with a pale green turquoise stone. It is set in a plain bezel with twisted wire rope and appliqué "flower petals". Shank is hand formed and cold chisel split. 

Size 9 and the face measures 1 1/2" by 1 1/4". Weight: 19.5 grams. No hallmarks. Acid tested.