Highest Coingrade You Got From PCGS, NGC, ICG, ANACS?

I have not sent one recently, but as far as I know, it is very rare for a modern coin to be worth thousands (with the exception of a few varieties of wheat pennies)

Your question is simply too.broad. I've received UC70 from NGC that were worth $100. I've also received AU-58 from them for a coin worth (and sold for) $6000.

If you are asking if I get better grades than expected, yes. But only 15% of the time. I also overgrade by 10% too.

So if your good at grading you will be right more often than wrong.

1994 D Jefferson in 66 FS is only worth $25. Which gives you an idea how rare that 67 is.

My most recent example is 1952-D FS-501 Washington quarter. Tied for finest at MS65 it has a future ahead. After talking with a few dealers in our network at work, I plan to cross it to PCGS then get it CAC stickered. All of the MS65's tied are pretty baggy and some of them should be 64's. Regardless there are only 10 other at the MS65 level and 7 have been rejected by CAC with none passing. But, mine is very solid for a 65 and I expect it to pass. I originally paid $25. After getting it crossed and stickered, estimated auction hammer price is ~$2000.

Thanks everyoe! Appreciate the time and information you've provided.