Artisan vintage sterling druzy ring

Unique large vintage genuine turquoise colored crystal druzy ring with a lovely uneven mountainous surface to it that reminds me of the rock candy I'd get as a kid. Set in a stamped sterling silver setting that appears to be handmade. There is an uneven opening at the back of the stone. Unsure if it's been treated or dyed to get that fabulous color or if that's actually the natural color of the stone. Roughly sitting at about sz 7.