Is Kon Knueppel #254 worth grading?
Basketball · Basketball Cards 2025 Topps Chrome · full price guide →
Strong grading candidate — 30× premium in PSA 10
A PSA 10 Kon Knueppel #254 sells for $132 against $4.43 raw: a $128 spread, 30× the ungraded price. A PSA 9 ($23.50) 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)
- $4.43
- PSA 10
- $132
- PSA 9
- $23.50
- Gem premium
- 30×
- As of
- Jul 11, 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 | $132 | +$103 | +$77.59 | −$22.41 |
| PSA 9 | $23.50 | −$5.93 | −$30.93 | −$131 |
| PSA 8 | $12.41 | −$17.02 | −$42.02 | −$142 |
Net = sale price − $4.43 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% | $50.63 | −$3.80 |
| 50% | $77.76 | +$23.33 |
| 75% | $105 | +$50.46 |
Break-even gem rate at the standard fee: about 29%. 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 |
|---|---|---|---|---|
| BGS 10 | $172 | best | 55/45 | 70/30 |
| PSA 10 | $132 | −$39.98 | 55/45 | 75/25 |
| CGC 10 | $66.99 | −$105 | 55/45 | 75/25 |
| SGC 10 | $23.65 | −$148 | 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.
Full grade ladder
Raw conditions & history →| Grade | PSA | CGC | BGS | SGC | Graded |
|---|---|---|---|---|---|
| 10 | $132 | $66.99 | $172 | $23.65 | — |
| 9.5 | — | — | — | — | $37.50 |
| 9 | — | — | — | — | $23.50 |
| 8 | — | — | — | — | $12.41 |
| 7 | — | — | — | — | $10.00 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
Other 2025 Topps Chrome cards worth checking
Full set checklist →![Stephen Curry [Black Basketball Refractor] #201 2025 Topps Chrome card](https://i.ebayimg.com/images/g/33YAAeSwgN9qUTph/s-l500.jpg)
Grading Kon Knueppel #254 — FAQ
Is Kon Knueppel #254 worth grading?
A PSA 10 Kon Knueppel #254 sells for $132 against $4.43 raw: a $128 spread, 30× the ungraded price. A PSA 9 ($23.50) 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 #254 worth compared with raw?
A PSA 10 Kon Knueppel #254 (Basketball Cards 2025 Topps Chrome) sells for about $132 versus $4.43 for a raw near-mint copy — a 30× premium as of Jul 11, 2026.
Which grading company is best for Kon Knueppel #254?
By resale value, BGS 10 leads at $172, ahead of PSA 10 at $132. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Kon Knueppel #254 need for a BGS 10?
BGS publishes 55/45 front and 70/30 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 #254 break even?
At a standard ~$50 fee, submitting Kon Knueppel #254 breaks even when it gems about 29% of the time (a miss assumed to sell at the PSA 9 price of $23.50).
Is your basketball card centered well enough to grade?
Centering makes or breaks a PSA 10. Scan any card with Midpoint to measure its exact centering, get a grade estimate, and see what your copy is actually worth.
Check my card free