Unique Art Deco Wide Band Inlay Natural Amber,Green,Purple pink Stone,Brass SZ 9

Vintage not sure of age, I know it has to be pretty old because it belonged to my Grandmother Very unique Wide band Unisex Size 9 Wide brass band art deco Decorated with inlayed natural stones beautiful colors including, greens, purples, pinks, amber, black It really is a very unique ring. There are no markings on it that I can see