That's a nice toner! Some of these have wild color. If that is a scratch on the obv, I'll guess Unc details. Otherwise MS62
It looks AU-something-or-other to me. But have you seen AU Columbians? This is one I think that's going to market grade well in excess of those, scratch or no scratch.
MS-61 because of the long scratch on the obverse. It could also be a "no grade" or "details grade" because of that. The color is interesting, but you find this one these coins because a fair number of them were sold in little leather coverings.
A nice looking AU-58 with pretty toning. But that scratch, if that's what it is, is pretty severe and is right in the focal zones. I think it graded AU-Details.
I'm guessing it is either not a scratch or PCGS felt it was market acceptable (occasionally even scratches are glossed over-maybe with the penalty being a slightly lower "net" grade).
I downloaded the image and blew it up as much as I could. I'm now thinking it is not a scratch since I really don't see any displaced metal. And if a scratch, you would think you would see displaced metal where the mark crosses the E of UNITED. So, I'm now thinking it's some kind of a toning mark? Anyway, I still think I see rubs on the eyebrow, cheek, nostril, first lock of hair at the temple, and bust. I am in Quandary City with this one.
That is not a scratch, it's a toning anomaly. Probably something prevented it from toning in that area (much like how a fingerprint affects toning). Look at where it crosses the 'E'. Anyway, the coin is a solid 65, with a shot at 66. My guess; 65 and a beautiful one at that!