Early Navajo Sterling Silver Ring set with Green Variscite Size 5

Vintage Navajo hand made sterling silver ring. it is set with an outstanding natural green variscite stone. It has inclusions of white quartz and pyrite. 

Shand is hand hammered and cold chisel split. 

Ring is a size 5 and the face of the ring measures 7/8" long. The dome of the stone is 5mm tall. Weight: 8.1 grams. Silver is very tarnished.