GEM-MT 10 (Gem Mint): A PSA GEM-MT 10 is a virtually perfect card, from its four sharp corners and no creasing to its sharp focus and full original gloss intact.
MINT 9 (MINT): A PSA Mint 9 is a superb condition card that exhibits only one of the following minor flaws: a very slight wax stain on reverse, a minor printing imperfection or slightly off-white borders. Centering must be approximately 60/40 to 65/35 or better on the front and 90/10 or better on the reverse.
(Mint):A PSA NM-MT 8 is super high-end card that appears Mint 9 at first glance, but upon closer inspection the card can exhibit the following: A very slight wax stain on the reverse. Slightest fraying at one or two corners. A minor printing imperfection and/or slightly off-white borders.