- Country: West Germany
- Genres: Crime
- Release: 1975-04-14
- Director: N/A
- Writers: N/A
- Language: German
- Stars: Hartmut Becker , Hans Wyprächtiger , Patrick Mynhardt , Stuart Brown , Susanne Schaefer , Ian Yule , Hal Orlandini , John Hayter
- Runtime: min
- Awards: N/A
- AKA: John Ralling - Abenteuer um Diamanten , John Ralling - Abenteuer um Diamanten
- Plot: N/A
- IMDB:tt1433677
John Ralling – Abenteuer um Diamanten Cast
Hartmut Becker
John Ralling
Hans Wyprächtiger
Andries
Patrick Mynhardt
Dr. Kisch
Stuart Brown
Van Wyk
Susanne Schaefer
Cordelia
Ian Yule
Hal Orlandini
John Hayter