This morning I leveled my jeweler up to 10. Unlocking the achievement. Then downtime, now no achievement, but the jeweler is still level 10.

So normally if the game thinks I don't have an achievement I didn't do, I just do it again. But I literally can't do this again.

Is there some work around for this? Probably not. So I'm posting here.

update: I don't know exactly what fixed it, but I've got the achievement now. So thanks blizzard.
Edited by Warmth#1898 on 6/1/2012 8:39 PM PDT