What kind of bugs me about the grading on this coin is that it has some very visible dents/dings on the obverse's bottom. I have a ICCS AU-58 with one minor ding (had to be pointed out to me) but not quite enough lustre to name it MS. I don't mean to compare so harshly but this is what I see. Gold, being very soft, is susceptible to quick damage, which tells me this coin was lightly circulated or dropped by a collector or someone with gloves at the mint. I'm not going to comment on the field because the coin's holder interferes with a good picture.
(I'm not a dealer nor an expert.)