Native American Indian Sterling Silver Large Turquoise Ring - Size 11

This is a amazing ring designed by a Native American artist. There's no Hallmark on the back of the ring. It's made out of sterling silver. The ring is a size 11. The ring features 1 large turquoise stone. The stone measures 3/4" across and 1" tall. It weighs a total of 19.68 grams. The ring is in good vintage condition and looks beautiful when worn.