The Scottish singer-songwriter, who was best known for hits including "I Won't Let You Down", "I Should Have Known Better" and "Hi Ho Silver", passed away at his London home, leaving his family "deeply shocked by his sudden death", reported Daily Mirror.
"He was a devoted family man who loved his wife Chrissy and his children Sara and Lawrence, and the music that he continued to make," a statement read.
"He dedicated a lot of time over recent years to the Cash for Kids charity appeal in Scotland with his friend Sir Tom Hunter and was still active and well respected on the music scene.
Diamond's passing comes just a few weeks after the death of his mother.