As much as I would agree to use 1500 gems to get a dujur dragon, these 3000-gem cheat won't work because the easiest way to unlock it without installing anything isn't valid in my country (which is the poll)
Don't exist cheats that really work, I sincerely try many options, but none works... So, if we have to collect the gems of the "normal mode", 1500 gems will takes too much time!! I think the creators of Dragon City should lower prices. If not, it will be difficult get this dragons. Or, does it all is only a strategy to continue to keep buying gems...?