Mint (Gem Mint): Perfect mint card.
Near Mint: Such card was never played but may have very few minor traces of wear due to storing without a sleeve or mishandling, visible on the back or edges. Card face must be in near perfect state.
Fine: Used card with wear around edges and on the back. Card face must look attractive and picture must be sharp and clean. There can be 1 minor crease, visible on the back. There must be no tears or dents.
Good: More extensively used card with signs of wear. A card can have a few minor creases, visible on face of the card. There must be no tears or heavy dents. No part of the card can be missing. When in sleeve, such card will still be good for play.
Fair: Such card has unattractive look with heavy creases, stains, scratches, tears and other damages.