Board Thread:Dragon City Questions and Answers/@comment-203.177.74.143-20130413115541/@comment-3016374-20130416093811

Coming back to the game each day to do collesseum and PvP with strong dragons will net you at 2 gems from collusseum every 12 hours and 2 gems from PvP every 7 victories you get.

Levelling up and completing certain goals also awards gems.

If you have a good supply, you can chance it at the daily deus spin and try to earn more gems from it. Even if you lose them all, you will make quite a bit of gold and food in the meantime with a chance for rare dragons, decorations or MORE GEMS!!!

Check out this page for special events for gems every week or so.

https://twitter.com/DragonCityGame

Best of luck with your gem hunting. :)