Art Deco Style Ring Multi Color

As shown I'm unsure of the age I also think it's stainless steel but again don't quote me The lady at the estate sale had no history on the jewelry I just purchased there, as it did not belong to her It fits me at a 7 unique and very art Deco Style offers welcome as I wanted an 8 for my middle finger and was able to find a few 8's there The blue is turquoise then there is red green black and silver Tiny bit of patina as shown