Yup. Same here. Roughly 90% of generated gems are -USTR, this as far as I can see only applies to gems in merchants inventory, not dropped gems.

Another minor bug with merchants: LARGE gems are 4 times more expensive than the more powerful LARGER gems. I believe the price is wrong on the LARGER gems since they are even cheaper than MEDIUM gems.

"Gods don't like people not doing much work. People who aren't busy all the time might start to think." T P