Beckett Condition Price Guide are as follows:
Mint (9) - Four sharp corners (a tiny speck of wear is allowed), 55/45 or better centering, smooth edges, original color borders and gloss, a handful of specks or one minor spot.
Near Mint-Mint (NmMt 8 ) - Must have 60/40 or better centering, relatively smooth edges, original color borders and gloss. One of the following very minor flaws is allowed: corners sharp to the naked eye but slight imperfections under intense scrutiny, a handful of minor print spots, subtle color or focus imperfections.
Near Mint (NrMt 7) - Centering of 65/35 or better. In addition one of the following minor flaws is allowed: a slight touch of wear on two or three corners, slightly rough edges, a few noticeable print spots or speckling, color or focus imperfections.
Excellent-Mint (ExMt 6) - Centering no worse than 70/30. No more than two of the following flaws are allowed: two or three fuzzy corners, slightly rough edges, very minor border discoloration, noticeable print spots, color or focus imperfections.
Excellent (Ex 5) - Centering no worse than 75/25 with four fuzzy corners (a touch of notching or a minor ding is allowed). May also have rough edges, minor border discoloration and noticeable print spots, color or focus imperfections.
Very Good (VG 3) - Handled, but not abused. Centering 80/20 or better. Slightly rounded corners with slight layering, slight notching or noticeable chipping on edges, moderate border discoloration, some gloss lost from the surface, very minor scuffing. May have hairline creases.