Vintage H.G.E 18kt Gold Black Enamel Crystal Dome Cocktail Ring Size 7.5 - 7.75

This lovely Cocktail Ring was found at a local estate sale. It is vintage and in lovely condition. It is Heavy Gold Electroplated with 18kt Gold. I am unsure of the base metal. In the pictures you can see the sizing. It appears to fall between 7.5 and 8. This Ring is gorgeous and sparkly. It definitely makes a statement.  There are no missing stones that I could see, the Enamel and gold plating look to be in very good condition.