Diamonds is the eighth studio album by Japanese pop band Deen.

Diamonds was released two years after Deen's previous album Road Cruisin'.

The album consists of two previously released singles, Starting Over and Diamond.

For the first time, the composer Kouji Yamane performed by himself his own written song Shanghai Rock Star.

For the first time after eight years, some staff from Being Inc. were involved in album production, such as Tetsurō Oda and Takeshi Hayama.