Vintage Navajo sterling silver ring set with a natural turquoise stone that is a minty green color. It has a darker turquoise color around the like chert matrix. It is not stabilized. It has interior lines that look like cracks, but if you look at the coloration, it is part of the matrix. Really nice stone with good interest. 

The shank is hand hammered and cold chisel splits. Size 9.5 The face is 7/8” long. Weight: 9 grams.