First Appearance: Slam Bang Comics # 1 (March 1940)
Publisher: Fawcett Comics
Creator: Gus Ricca
* Link to Public Domain Super Heroes Page
Diamond Jack was given a magic diamond encased in a ring by an aged magician who taught him how to use it to "aid the worthy". The diamond was once the eye of an evil god.
The power of the ring manifested in traditional mystical ways such as changing objects from one to another and allowing Diamond Jack to control objects or people. It also granted him superhuman powers such as strength, speed, flight and invulnerability. The magic used was dependent on his concentration.
Diamond Jack used this magic ring to fight criminals, vampire, demons, sorcerors and even an evil god.
Diamond Jack appeared in Slam Bang Comics # 1-7 and Wow Comics # 1.
The following is from Slam Bang Comics # 1.