Blue Turquoise Cast Silver Vintage Ring Size 12 Old Pawn JR 157

Silver Big rectangle of blue turquoise, possibly Sleeping Beauty, centers this vintage Native ring. Silver rain drops top and bottom and well detailed sides.
Circa 1970s. Nice wide comfortable shank. Good wear and patina.
Stamped JVI?
The ring is size 12 and weighs 11 grams.
Inventory #JR 157