Sports Card Grading Guide
Professional grading transforms raw cards into authenticated, encased collectibles that command premium prices. A PSA 10 1986 Fleer Jordan sells for $700,000+ while a raw copy in similar condition fetches $15,000. That multiplier is why grading matters. This guide covers the four major grading companies, the criteria they evaluate, the grading scale, and practical tips for maximizing your return on grading submissions.
Last updated: April 2026
The Four Major Grading Companies
PSA
Professional Sports Authenticator — Founded 1991
Market leader with highest resale premium. A 1986 Fleer Jordan PSA 10 commands $700K+ while a raw copy in similar condition sells for $15K. PSA slabs move fastest on eBay and at auction.
BGS
Beckett Grading Services — Founded 1999
Four subgrades (centering, corners, edges, surface) give collectors more detail than PSA's single number. A BGS 10 Pristine / Black Label commands 2–3x over PSA 10 for modern cards.
SGC
Sportscard Guaranty Corporation — Founded 1998
Preferred by vintage specialists. SGC is faster and cheaper than PSA but carries a ~30% resale discount on most cards. Excellent for crossover candidates you plan to resubmit to PSA.
CGC
Certified Guaranty Company — Founded 2021 (sports card expansion)
Newest major grading company. Leverages decades of comic book grading expertise. CGC slabs are gaining market acceptance but carry the lowest resale premium of the big four.
For a detailed head-to-head, see our PSA vs BGS comparison and PSA alternatives guide.
What Graders Evaluate
Every grading company evaluates the same four criteria. BGS breaks these into individual subgrades (each scored separately); PSA and SGC combine them into a single number.
Centering
Weight: CriticalThe alignment of the printed image within the card borders. Measured as a ratio (e.g., 50/50 is perfect, 60/40 is off-center). Centering alone can cause a 2–3 grade drop. Cards printed on sheets with cutting variance (most vintage cards) are inherently difficult to center.
Corners
Weight: HighSharpness of all four corners under magnification. Rounding, dings, or peeling at corners reduce the grade. Corner wear is the most common condition issue and accumulates with any handling. Even brand-new cards from factory packs can have soft corners from production.
Edges
Weight: HighClean, uniform edges along all four sides. Chipping, roughness, or color showing through along the edge reduces the grade. Dark-bordered cards (1971 Topps black borders) show edge wear more than white-bordered cards.
Surface
Weight: Medium–HighThe card face and back must be free of scratches, print defects, stains, wax residue, and creases. Surface issues are especially impactful on Chrome and refractor cards where scratches catch light. BGS surface subgrade is the most commonly failed category.
The Grading Scale — What Each Grade Means
Grades run from 1 (Poor) to 10 (Gem Mint). Each half-grade shift can halve or double a card's value. The table below covers grades 5–10, which represent the collectible range.
| Grade | Label | PSA | BGS Equivalent | Value vs Raw |
|---|---|---|---|---|
| 10 | Gem Mint | PSA 10 | BGS 10 Pristine | 10–50x raw |
| 9 | Mint | PSA 9 | BGS 9.5 Gem Mint | 5–20x raw |
| 8 | NM-MT | PSA 8 | BGS 9 | 3–10x raw |
| 7 | Near Mint | PSA 7 | BGS 8.5 | 2–5x raw |
| 6 | EX-MT | PSA 6 | BGS 8 | 1.5–3x raw |
| 5 | Excellent | PSA 5 | BGS 7 | 1–2x raw |
Virtually perfect. Centering 55/45 or better on front, sharp corners, flawless surface. Fewer than 1% of submissions achieve this grade.
1986 Fleer Jordan: raw $15K → PSA 10 $700K+
Excellent centering (50/50 to 55/45), minor imperfections invisible to naked eye. A single soft corner under magnification is enough to drop from 10 to 9.
2017 Topps Update Acuna: raw $40 → PSA 9 $400–600
Good centering, slight corner or edge wear visible under close inspection. Print lines, minor surface issues. Very collectible for vintage.
1952 Topps Mantle: PSA 8 = $200K+
Average centering, minor wear visible without magnification. Light corner rounding. The entry point for vintage collectors on a budget.
1952 Topps Mantle: PSA 7 = $60K
Noticeable wear, 40/60 centering, soft corners. Still presentable in a slab. Significant drop from grade 7 in resale value.
1986 Fleer Jordan: PSA 6 = $3K–5K
Moderate wear, minor creases possible, still attractive overall. Common grade for vintage cards that were well-stored but handled.
1952 Topps Mantle: PSA 5 = $8K
Learn more: PSA 10 · Gem Mint · Sub-Grades
Grading Submission Tips
Pre-screen before submitting
Use a high-res scan or loupe to check centering, corners, edges, and surface before paying grading fees. Apps like Radar can help estimate card value to determine if grading ROI makes sense. Do not submit cards that will grade below 7 unless they are high-value vintage.
Declare accurate values
PSA and BGS charge tier-based fees for cards above certain declared values ($200, $500, $1,000+). Declaring too high wastes money on fees. Declaring too low risks losing insurance coverage if the card is damaged. Check recent eBay sold listings before declaring.
Submit in bulk when possible
Bulk submissions of 20+ cards qualify for $15–18/card rates at most companies. Group your submissions to save on per-card costs. But only submit cards where the grading premium justifies the fee — a $10 raw card grading to PSA 8 at $25/card is a net loss.
Choose the right company for the card
PSA for vintage and maximum resale liquidity. BGS for modern rookies where subgrades matter (especially if you're chasing a Black Label 10). SGC for fast, affordable vintage grading. CGC for modern cards if you need quick turnaround.
Handle cards with clean hands or gloves
Fingerprints on card surfaces cause surface deductions under grading. Always handle raw cards by the edges. Use a penny sleeve inside a toploader for storage before submission. Never stack unsleeved raw cards — surface scratches from card-on-card contact are the most common preventable issue.
Check PSA population reports
Before buying a graded card, check the PSA population report (free at psacard.com) to see how many copies exist at each grade. A card with 5,000+ PSA 10s will hold less premium than one with fewer than 100. Low population + high demand = strongest price support.
Radar App
Know a Card's Value Before You Grade It
Scan any card with Radar to check current eBay sold prices by grade. See if the grading premium justifies the submission fee before you spend $25+ per card.
Frequently Asked Questions
How much does it cost to get a sports card graded?
Base fees range from $15–50 per card depending on the company and service level. PSA economy starts at $25/card with 45–75 day turnaround. Express services ($150–750/card) offer 5–20 day turnaround. Add $20–50 per order for shipping and insurance. For high-value cards above $1,000, additional declared value fees apply. Bulk submissions of 20+ cards can reduce per-card costs to $15–18.
PSA vs BGS — which is better for modern rookie cards?
Both are excellent choices. PSA offers higher liquidity — PSA 10 cards sell faster on eBay because buyers recognize and trust the label. BGS offers more grading detail through four subgrades (centering, corners, edges, surface), and a BGS 10 Pristine / Black Label commands a 2–3x premium over PSA 10. If you believe your card is perfect enough for a Black Label, submit to BGS. If you want the fastest resale, submit to PSA. See our full PSA vs BGS comparison for detailed analysis.
How much does grading increase a card's value?
The value multiplier depends on the grade achieved and the card's raw value. A PSA 10 of a star rookie typically sells for 10–50x the raw price. Example: a 2017 Topps Update Ronald Acuna Jr. sells for $30–50 raw, $200 in PSA 8, $400–600 in PSA 9, and $1,500+ in PSA 10. For vintage cards, even a PSA 5 of a key Hall of Famer can be worth 2x raw. The ROI is highest when you have a card that grades PSA 9 or 10.
What percentage of cards get a PSA 10?
For modern cards (post-2010), approximately 30–60% of submissions receive a PSA 10, depending on print quality and centering. For vintage cards (pre-1980), PSA 10 rates drop below 1% due to manufacturing and handling issues. The 1986 Fleer Jordan has a PSA 10 rate of less than 1% across 32,000+ submissions. These percentages vary significantly by set and year.