Mint Green Turquoise and Red Coral Navajo Ring Size 7.5

Vintage 1970s Navajo sterling silver ring. It is set with mint green natural turquoise and deep red coral. Size: 7.5. Face measures 1 3/8" long.  Shank is hand formed and cold chisel split. Weight: 6.5 grams. Has tarnish. No hallmarks. Acid tested.