Bisbee turquoise ring?

Hi, I often purchase items that I think are interesting. Though not credited as such, I thought it might be Bisbee, a very favorite. Though it has a nice polish, the stone has good wear on it, always hoping for natural stone. No sterling mark, the hallmark is a conjoined VA, which I have not found. Pretty nice silver work, stone is 15/16" x 7/16".
Opinions? I’m thinking 1980’s.

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Possibly a piece of Bisbee. I came across this vidal aragon/ santa domingo | Jewelry | Vintage Santa Domingo Sterling Ring Vidal Aragon | Poshmark. Your hallmark looks different, but he could have used variations?

thanks Jason…photography with phones so challenging