Blizzard said a fix for the bug has now been implemented and is being tested before the auction house is made live again.
It has also decided against rolling back the servers as it deems that "relatively few" American users exploited the bug.
The firm said: "At this time (and after careful consideration), we've decided to not move forward with rolling back the servers. We feel that this is the best course of action given the nature of the dupe, how relatively few players used it, and the fact that its effects were fairly limited within the region.
"We've been able to successfully identify players who duplicated gold by using this specific bug, and are focusing on these accounts to make corrections. While this is a time-consuming and very detailed process, we believe it's the most appropriate choice given the circumstances.
"We know that some of you may disagree, but we feel that performing a full roll back would impact the community in an even greater way, as it would require significant downtime as well as revert the progress legitimate players have made since patch 1.0.8 was released this morning."