Vintage Bright Purple Amethyst Ring Size 7 1/4

Vintage sterling silver ring set with a round domed cabochon bright purple amethyst stone. Photos were taken in the sun. When you are wearing it and have skin behind it, it will darken. Size 7 1/4 . Face measures 5/8" in diameter. Weight: 5.1 grams. No hallmarks. Acid tested.