What do PSA card grades mean

PSA card grades describe a card’s condition as judged by professional graders. Knowing what those grades mean helps collectors evaluate cards from baseball, basketball, football, hockey and soccer collections before buying, selling, or trading.

Quick facts

Top grade
PSA 10 'Gem Mint'
Near top
PSA 9 'Mint'

What PSA grading is

PSA grading is a third-party assessment of a trading card’s physical condition and authenticity. A PSA grade is intended to give collectors and traders a consistent, objective identifier they can use when comparing cards. PSA grading applies to cards across sports — for example, baseball, basketball, football, hockey and soccer — and is commonly used by buyers, sellers and long-term collectors to set expectations about condition.

How graders evaluate a card

Graders inspect several visible attributes when assigning a grade. The primary factors are centering, surface condition, corners, edges and any print defects or scratches. Graders use magnification and controlled lighting; they may also check serial numbers or other identifiers to confirm authenticity. Small issues such as a tiny nick on a corner or a faint surface flaw are weighed against overall eye appeal during grading.

What the top grades mean

At the top of the scale are cards that show little to no wear. PSA 10 'Gem Mint' indicates a card that looks essentially perfect under close inspection: sharp corners, a clean surface, strong centering and no visible print defects. PSA 9 'Mint' describes a card that is nearly perfect but shows one small imperfection — for example, a very minor corner touch, a tiny surface mark or a slight centering issue that is only noticeable under close scrutiny. Both labels are used by collectors as shorthand for very high condition.

How a grade affects collecting and trading

A grade provides a common reference point when buying, selling or trading. Collectors use grades to compare similar cards, to decide which card to display, and to determine which pieces to send for conservation or regrading. For trading, a clearly stated grade reduces disagreements about condition. For storage, graded cards are typically kept in holders that protect the card and preserve the assigned grade.

Digital tools and cataloging (including Slabbr)

You can make grading information more useful by scanning and cataloging your collection. Use a consistent identifier for each card and keep photos that show condition details like corners and surface. If you want an app to scan cards and help manage a collection, Slabbr can assist with scanning and tracking PSA-graded cards.

Common questions

Can I change a card’s PSA grade?
You cannot alter an assigned PSA grade without resubmitting the card to PSA for a new evaluation. Some collectors send cards back for regrading if they believe the card was undergraded, but regrading can result in the same grade, a higher grade, or a lower grade.
Is a higher grade always better for every collector?
Not always. Higher grades indicate better condition and greater consistency for trading, but some collectors prefer low-grade cards for affordability, historical wear, or for completing a set. The right grade depends on your collecting goals.
What should I look for before sending a card to be graded?
Inspect centering, corners, edges and the surface. Take clear photos showing any flaws. Keep the card in a protective sleeve and use a rigid mailer when sending. Confirm the card’s identity and any serial numbers before submission.

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