You do not need to grade your collection perfectly. Use this guide to photograph and describe visible issues honestly.
Excellent: Strong original appearance with little or no visible wear under normal viewing.
Very Good: Minor signs of handling, light surface marks, or small packaging wear.
Good: Noticeable but moderate wear, scratches, tarnish, card wear, or minor imperfections.
Fair: Obvious wear, discoloration, bent posts, loose components, damaged packaging, or missing accessories.
Damaged or Incomplete: Broken, chipped, cracked, repaired, missing parts, missing major components, or otherwise substantially altered.