This is a Navajo handcrafted ring size 12 3/4 by Ray Jack. This ring is created with Kingman Mine Turquoise crafted with Sterling Silver. This piece is signed by Ray noted as RJ and is stamped Sterling. Note that the artist stamp is very difficult to make out on this piece.
The face of the ring is approximately 13/16 inch top to bottom.
Total weight of this piece is 15.4 grams.