I've never seen this name used, only the male form
Evgeni. (
Evgeni Malkin plays for the Pittsburgh Penguins Hockey Franchise). Even though I have never seen this name, I think it's BEAUTIFUL! I would pronouce it Ev-gen-i-a. I would use the nickname
Gina with it. But you could use
Jen or Eve/a. I prefer
Evgenia, it sounds much nicer IMO.