About the other gem dungeons...

I'm sure they still exist but what about the end? do they still have orb frags?

I just finished Green and got a complete black orb so no I guess. It surprised me, because I remember having to get all 4 fragments. But I guess a lot has changed since Gen 6.

I stand corrected, Albey Blue has Fragment #2 in it's reward room. So you run Green get the full gem and then can get fragments 2-4. Lol.