Size 9 Vintage Statement Ring

just with Purchase. Oval Faux turquoise. believe this to be a Chalchite stone but seriously not sure. All I can say 100 % is that the center is a stone and the metal is gold tone. Due to the quality and weight I believe it could be electroplated, it is difficult to say. I don’t know how to use my metal detector! Intricate beautiful design. No stamps to help define.