Gems

About
A Gem is a form of currency in Dragon City, it can be earned by purchasing Gems with real money (via credit card or cellphone), and earned in both player vs player (PVP) and Stadium and many others. It is worth more than Gold. A player can spend gems on upgrading a Hatchery, unlocking 2 of the four islands, or purchasing various items inside shop. Also Gems can be converted in gold or food inside the game.

Speeding up, you have to pay 1 gem for each hour.

PayingAs.jpg
The Picture Above is an egg that is being sped up through the purchase of gems.A gem can add if be used for harvesting foods, hatching eggs, exchanging to gold and foods, and many others tasks.

Trivia

 * The icon for Gems appears to be a purple Amethyst.