Vintage Southwest Native Sterling Silver Boulder Opal Cocktail Ring Adjustable

Vintage Southwest Native Sterling Silver Boulder Opal Cocktail Ring Adjustable This currently sits at a size 7 but can easily be made larger as it’s adjustable. The smallest it can be set is a 6.5 acid tested to confirm Sterling. This may be Native American made given the design but I am listing as Southwest as I am not sure. Measurements Length: 1 1/8 inches Size: 6.5-9