The guys are back and on a mission. Keng completes his task of helping his friends find their futures and is finally free to move on. As friendships are renewed, the Diamonds set down a path that will see them change the face of Diamond Boys, and Pattaya. They gain revenge on some of those who crossed, exploited and abused them in their youth. To get there they have to work undercover for the police to expose a side of Thailand a lot of them were once part of, the side the Thailand where they lost their innocence. In many ways it was all for Keng, their soul mate, who started young and died at 20. Rot finally declares his feelings, ones that he has hidden from everyone but Mike and, together with Run, leads the Diamonds towards the bright future.
The pivotal event in the "Thai Diamonds" books is Rit?s night at the Hilton. Whilst Rough Diamonds tells the story up to that night, Diamond Fellowship is a fast-paced account of the three months that follow it. If you have read "Rough Diamonds", "Diamond Fellowship" follows their stories. If you have not then "Rough Diamonds" is there for you to delve into their past once you have read "Diamond Fellowship".