Is Kon Knueppel #80BK-53 worth grading?
Basketball · Basketball Cards 2025 Topps 1980 · full price guide →
Strong grading candidate — 34× premium in PSA 10
A PSA 10 Kon Knueppel #80BK-53 sells for $53.45 against $1.57 raw: a $51.88 spread, 34× the ungraded price. A PSA 9 ($18.54) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
- Raw (NM)
- $1.57
- PSA 10
- $53.45
- PSA 9
- $18.54
- Gem premium
- 34×
- As of
- Sep 4, 2026
Break-even by outcome and fee
| If it comes back… | Sells for | Economy / bulk (~$25.00) | Standard (~$50.00) | Express (~$150) |
|---|---|---|---|---|
| Gem — PSA 10 | $53.45 | +$26.88 | +$1.88 | −$98.12 |
| PSA 9 | $18.54 | −$8.03 | −$33.03 | −$133 |
| PSA 8 | $9.99 | −$16.58 | −$41.58 | −$142 |
Net = sale price − $1.57 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.
Expected value — how often does it need to gem?
| Chance it gems | Expected sale | Expected net (standard fee) |
|---|---|---|
| 25% | $27.27 | −$24.30 |
| 50% | $36.00 | −$15.57 |
| 75% | $44.72 | −$6.85 |
Break-even gem rate at the standard fee: about 95%. Centering is the usual reason a clean copy misses — measure it before you decide.
Which grader pays the most — and what a 10 takes
All centering standards →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| CGC 10 | $85.00 | best | 55/45 | 75/25 |
| BGS 10 | $69.00 | −$16.00 | 55/45 | 70/30 |
| SGC 10 | $59.99 | −$25.01 | 55/45 | 75/25 |
| PSA 10 | $53.45 | −$31.55 | 55/45 | 75/25 |
Tolerances are each company's published centering standard for its top grade; surface, corners and edges must also be clean. Centering is the one you can measure yourself before you pay.
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Other 2025 Topps 1980 cards worth checking
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![Cooper Flagg [Green] #80BK-51 2025 Topps 1980 card](https://i.ebayimg.com/images/g/WAwAAeSwYlFqYPb-/s-l500.jpg)
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Grading Kon Knueppel #80BK-53 — FAQ
Is Kon Knueppel #80BK-53 worth grading?
A PSA 10 Kon Knueppel #80BK-53 sells for $53.45 against $1.57 raw: a $51.88 spread, 34× the ungraded price. A PSA 9 ($18.54) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
How much is a PSA 10 Kon Knueppel #80BK-53 worth compared with raw?
A PSA 10 Kon Knueppel #80BK-53 (Basketball Cards 2025 Topps 1980) sells for about $53.45 versus $1.57 for a raw near-mint copy — a 34× premium as of Sep 4, 2026.
Which grading company is best for Kon Knueppel #80BK-53?
By resale value, CGC 10 leads at $85.00, ahead of BGS 10 at $69.00. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Kon Knueppel #80BK-53 need for a CGC 10?
CGC publishes 55/45 front and 75/25 back centering as the tolerance for a 10 (Gem Mint). Off-center copies are capped below the top grade regardless of surface — measure yours before paying the fee.
What gem rate makes grading Kon Knueppel #80BK-53 break even?
At a standard ~$50 fee, submitting Kon Knueppel #80BK-53 breaks even when it gems about 95% of the time (a miss assumed to sell at the PSA 9 price of $18.54).
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