Every 24 hours you can earn a Daily Reward of 500 Diamonds and 20 Keys. Please be sure to claim your Daily Reward before it expires at the end of each day.

You can exchange Diamonds for in-game Cash or Keys in the Premium Store. You can also earn Cash by entering Design Challenges, and scoring 5.0 on a Design earns you extra Diamonds.

Additionally, you can earn FREE Diamonds in the Premium Store! Go ahead, tap on your Currency Balance at the top of your screen and then tap “Free” to find out how to earn Diamonds.