Snake Eye Turquoise Rosette Ring in Sterling Silver Size 3 1/2

Vintage Navajo sterling silver ring set with 7 snake eye turquoise stones. They vary in color as some have turned green with age. Size; 3 1/2Face measures 5/8" in diameter. Weight: 3.5 grams. Tarnished. No hallmarks. Acid tested. C. 1975.