Richard Diamond Private Detective Author:NBC Radio Broadcast A. Starring Dick Powell as Richard Diamond. Diamond is hired by Mr. Clinton to find Elaine Tanner, who is missing. A routine missing persons case ends up being a murder case! Diamondís cool style helps him wind it up nice and neat. — NBC Broadcast 2-12-50 — B. Dick Powell start as Richard Diamond. Diamond attempts to solve the murder and $10... more »0,000 jewel therft that has the police baffled. In the process, he is almost killed! Diamond at his best in an exciting adventure!