Your most valuable drop?

Even though GE price is meaningless to Ironman, I still enjoy watching my bank value go up and find myself looking at the price of items I obtain.

So I got the berserker ring off Rex earlier today and was surprised to see it near 5 mil. Not much for some but it’s my most ‘valuable’ drop to date. I also see finding more valuable drops as a sign of progression in a way.

So what is your most valuable drop on your Ironman?