edit(KP)-(on level 15) It's 1 Gem per day. The "day" cycle in the games is 22 hrs instead of a regular 24. When you collect, 1 Gem you'll need to wait for it to accumulate again.
Using him in battle doesn't reset your timer.
Looks like we got a premium currency animal
The habitat is 730k ^^
Breed Time: 24 hours (Ocean Owl and Vinotaur)
Evolve Time: 36 hours
Currently on sale! Good luck everyone!
Thank you dragonloona for the egg pic and to everyone else that donated money and time for the info we all seek!