Board Thread:Game Discussions/@comment-99.250.64.9-20140522212150/@comment-24862049-20140523080002

GREE doesn't tell when a Gem Event will come. This is because people will then buy all their gems in sale periods. This way, GREE makes less profit on gems, because there usually isn't a sale period at the same time as a Gem Event.

I personally think there won't be a Gem Event this week/weekend.