Grading Spec
PSA Grading Standards, Qualifiers & Record Sales Explained
Condition drives card market value — PSA 1–10 grades and Qualifier codes are the shared language buyers and sellers use. This guide breaks down official grade definitions, hidden deduction tags, and why PSA 10 record sales command extreme premiums.
14 min · Updated 2026-06-18
What Is PSA Grading?
PSA (Professional Sports Authenticator), founded by David Hall in 1991, is one of the world's largest third-party card grading companies — over 65 million items certified to date. For collectors and investors, a PSA grade is the shared condition language: higher numbers mean sharper corners, cleaner surfaces, and better centering closer to factory state.
PSA 1–10 Grade Scale
PSA scores five factors together. Grade 1 is very poor; Grade 10 Gem Mint is near-perfect. The table below lists each official designation and core visual requirements.
| Grade / Code | Designation | Core Requirements |
|---|---|---|
| PSA 10 (GM-MT) | Gem Mint | Sharp corners, no stains, strong print gloss; only tiny flaws under magnification. Front centering ≤55/45, back ≤75/25. |
| PSA 9 (MINT) | Mint | Excellent condition with only very minor, unobtrusive factory flaws or slight symmetry deviation. |
| PSA 8 (NM-MT) | Near Mint-Mint | Strong eye appeal; close inspection may reveal slight corner wear or minor print flaws. |
| PSA 7 (NM) | Near Mint | Light surface wear, edge whitening, or faint wax lines possible; card body remains sound. |
| PSA 6 (EX-MT) | Excellent-Mint | More visible flaws such as light surface scratches or edge wear. |
| PSA 5 (EX) | Excellent | Slightly rounded corners, reduced gloss, or light print lines. |
| PSA 4 (VG-EX) | Very Good-Excellent | Clearer wear; possible light creases or surface staining. |
| PSA 3 (VG) | Very Good | Obvious creases or scuffs; significant corner rounding. |
| PSA 2 (GOOD) | Good | Heavy edge and surface wear; gloss gone; deeper creases. |
| PSA 1.5 / 1 (FR/PR) | Fair / Poor | Severe staining, tears, writing, tampering, or water damage. |
PSA Qualifier Codes
A card may meet a numeric grade overall but carry a Qualifier when one major flaw is present — shown as "PSA 8 OC" on the label. Many collectors prefer NQ (No Qualifier) grades for cleaner interpretation.
Record PSA 10 Sales
PSA 10 Gem Mint signals extreme scarcity plus authentication — top grades at auction often command order-of-magnitude premiums. Three public sales illustrate how the market prices perfection.
Record sales involve globally tiny PSA 10 populations. On mainstream hot cards, PSA 10 vs PSA 9 spreads can still be multiples — screen raw copies before submitting. See grade vs protect workflow.
Frequently Asked Questions
Five questions collectors ask most before submitting, bidding, or buying graded cards.
Bottom Line: Read the Grade Before You Pay
PSA 1–10 and Qualifiers are the market's shared vocabulary. Cross-check the scale and centering thresholds before submitting; verify cert numbers and slab authenticity before buying — cheaper than chasing mistakes later.
Measure centering before you submit
Upload a scan or seller photo and compare front/back percentages against PSA 10 thresholds before paying grading fees.
