PSA Grading

Professional Sports Authenticator (PSA) is the world's largest and most trusted third-party trading card authentication and grading service. Founded in 1991, PSA has graded over 50 million cards and collectibles, establishing itself as the gold standard in the hobby.

Also on this page
  • Company Overview
  • History and Founding
  • Company Reputation
  • Grading Scale
  • The 1-10 Scale
  • Half Grades
  • Qualifiers
  • Service Levels and Pricing
  • Current Service Tiers
  • Additional Fees
  • Membership Programs
  • Pop Reports
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