In what year was the album “Diamond” released by 12012?

In what year was the album “Diamond” released by 12012?: The album “Diamond” was released in 2007 by 12012, featuring 13 tracks.
What is the most successful song from the album “Diamond” by 12012?: “Cyclone” is the biggest hit from the album “Diamond” by 12012.

Other artists of J-Pop/J-Rock