Don't you think that's mine copied the pic from pcgscoinfacts just for comparison... http://www.pcgscoinfacts.com/Coin/Detail/6113
No kidding I had to doublecheck the color on the 2 just to make sure even tho the first had more wear
It's completely variable. It's not a question of the color as much as it is time, any color can mute luster to variable degrees. The most common toning there is, grey, is well known for making luster just go poof. Dark brown can do the same thing on some coins, but look at copper. Dark chocolate brown is the norm and yet the luster still shines through. And with black, there is none. But the bottom line is that when toning becomes so thick that light cannot pass through it and be reflected back, then there is no luster visible. I say visible because in many cases the luster is still there, under the toning, you just can't see it anymore. But dip the coin, remove the toning, and lo and behold the luster is there staring you in the face.
So the poll closed a little while ago and it looks like the (significantly large) majority has it! The coin was graded AU-58 by PCGS. If you look at the very high point of the reverse eagle you can see some flatness in the luster of the eagle's wings. You can also slightly see this in the obverse hair. Honestly though, I'd prefer this coin to some of the MS62's and MS63's I've seen. Just a brilliant coin! If it didn't have that wear I have no doubt it would be an MS65. Congrats to those who got it! I'll be putting up more coins like this in the near future.