Vintage Decorative Silvertone Glass or Tourmaline Fancy Shank Ring 6.5 (A7077)

Vintage Decorative Silvertone Glass or Tourmaline Fancy Shank Ring 6.5 (A7077) Size: 6.5 Color: Green, Silver Condition: Very good vintage Signed: None Details: This looks like sterling but doesn't test as such. The stone tests as tourmaline, on the Presidium, but it could be glass? It seems like it's adjustable, but it's so hard to get it to move; right now it sits at about a size 7.5." Please look at all the photos, as they are part of the description. I try my best to point out any flaws. Also please remember this is a preloved piece and may show signs of light wear, marks, scratches, etc. I will be posting a lot more jewelry, Keep checking back.