The Diamond Wizard (1954)
The Diamond (original title)
Directors: Dennis O'Keefe, Montgomery Tully
Writers: John C. Higgins, Dennis O'Keefe (story) (as Jonathan Rix)
Stars: Dennis O'Keefe, Margaret Sheridan, Philip Friend
An American Treasury agent teams up with a Scotland Yard inspector to track down a group of thieves that are creating artificial diamonds out of sugar.