Can you earn gems from the colloseum in DragonVale?

Answer 1

Yes. Try entering a level 10 dragon that matches the kind of event being held. For example: Earth dragons do best in Earth events as Cold dragons do best in Cold events. If the dragons are the highest level you can get them (lvl 10 and above, depending on whether you have a shrine or not,) they will do their best. If you get a Bronze medal, you will receive some money. If you get a Silver medal, you will be given 2 gems, experience points, and I THINK a little money, too. If you receive a Gold medal, you get 5 gems, experience points, and I think you get money, too. (I may be wrong about the cash, but you certainly do get gems and XP.) I hope this helps.