Diamond Wave is the sixth studio album by Japanese recording artist Mai Kuraki.

[1] On August 11, a limited revamped (cover and booklet) standard edition was released.

A limited blog called "Diamond Web" was opened in commemoration of the release.

To view the blog two passwords enclosed in both the Diamond Wave album and single were needed.

Diamond Wave debuted on the Oricon albums chart at #3 with 78,228 copies sold.