For some reason instead of capping out at 10% it default caps at 20% (100 gold), along with if you have 49 gold extra in your inventory (best possible with set because it resets to default 10%) it can lead to 29% extra crit chance. I have no idea why this happens but it does.
Basically, the best you can get is a stack of 100 gold and another with 49 for a
29% crit chance increase
Singleplayer
Windows 10
I have dedicated graphics
16 GB RAM