Use[]
Star Gems may be used to purchase items from the Star Gem Store section of the Store. It may be found under the Redeem tab. These items include:
Source[]
Star Gems are obtained when obtaining duplicate 4-Star and 3-Star Aurorians. Another way to obtain Star Gems is through the Starlight Chamber, a room on the Colossus. After upgrading the Starlight Chamber to Lv. 5, it will generate Star Gems in addition to Heartstones.