The Galaxy Gems is a special gem event that gives rewards for spending a certain rewards for spending certain gem amounts.
You must spend 50, 1,500, and 5,000 gems for the reward. It lasts from August 9th, 2014 to August 16th, 2014.
Rewards[]
50 Gems: 3 Spirit Fusion Boost Armors
1,500 Gems: Famine Robes+
5,000 Gems: Revelation Robes+