Understanding Card Grading Scales

Grading exists to answer one question: how close to perfect is this card? But the exact scale depends on who's doing the grading.

PSA (Professional Sports Authenticator) uses a 1-10 scale, with 10 being Gem Mint. A PSA 9 typically means near-perfect centering, corners, and surface, with only the smallest imperfection keeping it from a 10.

BGS (Beckett Grading Services) also uses a 1-10 scale, but adds subgrades for centering, corners, edges, and surface. A BGS 9.5 with four perfect 10 subgrades (a 'Gold Label' or 'Pristine' designation) is considered exceptionally strong — sometimes more desirable than a plain 9.5.

SGC (Sportscard Guaranty Corporation) also grades 1-10, and has become popular for vintage cards in particular, where collectors feel its scale is slightly more forgiving on centering for older, harder-to-find issues.

The practical takeaway: a '9' from one company isn't automatically equivalent to a '9' from another. When comparing prices, always check which grading company issued the grade, not just the number.

For modern cards, PSA and BGS dominate the market and tend to carry the strongest resale value. For vintage cards, SGC has carved out real credibility. None of these companies is 'the best' across the board — it depends on the era and type of card.