![Kon Knueppel [Refractor Blue] #SF-24 (Basketball Cards 2025 Topps Chrome Sleek Finishers) — is it worth grading?](https://i.ebayimg.com/images/g/BWQAAeSwtZBp6T8N/s-l1600.jpg)
Is Kon Knueppel [Refractor Blue] #SF-24 worth grading?
Basketball · Basketball Cards 2025 Topps Chrome Sleek Finishers · full price guide →
Strong grading candidate — 4.9× premium in PSA 10
A PSA 10 Kon Knueppel [Refractor Blue] #SF-24 sells for $225 against $46.02 raw: a $179 spread, 4.9× the ungraded price. A PSA 9 ($69.01) 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)
- $46.02
- PSA 10
- $225
- PSA 9
- $69.01
- Gem premium
- 4.9×
- 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 | $225 | +$154 | +$129 | +$28.98 |
| PSA 9 | $69.01 | −$2.01 | −$27.01 | −$127 |
| PSA 8 | $35.27 | −$35.75 | −$60.75 | −$161 |
Net = sale price − $46.02 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% | $108 | +$11.99 |
| 50% | $147 | +$50.98 |
| 75% | $186 | +$89.98 |
Break-even gem rate at the standard fee: about 17%. 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 | $293 | best | 55/45 | 70/30 |
| PSA 10 | $225 | −$68.00 | 55/45 | 75/25 |
| CGC 10 | $135 | −$158 | 55/45 | 75/25 |
| SGC 10 | $135 | −$158 | 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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Raw conditions & history →Swipe the table for the other grading companies →
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Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
Other 2025 Topps Chrome Sleek Finishers cards worth checking
Full set checklist →![Kon Knueppel [Refractor Purple Geometric] #SF-24 2025 Topps Chrome Sleek Finishers card](https://i.ebayimg.com/images/g/ng0AAeSwMtZqizL6/s-l500.jpg)
![Kon Knueppel [Refractor Purple] #SF-24 2025 Topps Chrome Sleek Finishers card](https://i.ebayimg.com/images/g/i7YAAeSwCQFpraxu/s-l500.jpg)
![Kon Knueppel [Refractor Green Geometric] #SF-24 2025 Topps Chrome Sleek Finishers card](https://i.ebayimg.com/images/g/XD0AAeSw8EdquJN7/s-l500.jpg)
![Stephen Curry [Refractor Gold] #SF-1 2025 Topps Chrome Sleek Finishers card](https://i.ebayimg.com/images/g/8rAAAeSwHQBqg6da/s-l500.jpg)
![Cooper Flagg [Refractor Aqua] #SF-21 2025 Topps Chrome Sleek Finishers card](https://i.ebayimg.com/images/g/kigAAeSw8Ghp~-93/s-l500.jpg)
Grading Kon Knueppel [Refractor Blue] #SF-24 — FAQ
Is Kon Knueppel [Refractor Blue] #SF-24 worth grading?
A PSA 10 Kon Knueppel [Refractor Blue] #SF-24 sells for $225 against $46.02 raw: a $179 spread, 4.9× the ungraded price. A PSA 9 ($69.01) 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 [Refractor Blue] #SF-24 worth compared with raw?
A PSA 10 Kon Knueppel [Refractor Blue] #SF-24 (Basketball Cards 2025 Topps Chrome Sleek Finishers) sells for about $225 versus $46.02 for a raw near-mint copy — a 4.9× premium as of Sep 4, 2026.
Which grading company is best for Kon Knueppel [Refractor Blue] #SF-24?
By resale value, BGS 10 leads at $293, ahead of PSA 10 at $225. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Kon Knueppel [Refractor Blue] #SF-24 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 [Refractor Blue] #SF-24 break even?
At a standard ~$50 fee, submitting Kon Knueppel [Refractor Blue] #SF-24 breaks even when it gems about 17% of the time (a miss assumed to sell at the PSA 9 price of $69.01).
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