The following are known Action Replay Codes for Diablo on Sony Playstation (PS1).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay, CodeBreaker & GameShark

Infinite Gold
d00047ac0000
800d9388ffff
d00047ac0000
8007014c0000
d00047ac0000
800701500000

Quick Level Gain Sorcerer
d00047ac0000
800d937a3fff

Quick Level Gain Rogue
d00047ac0000
800d937a4fff

Quick Level Gain Warrior
d00047ac0000
800d937a5fff