Is Kon Knueppel [Refractor] #254 worth grading?
Basketball · Basketball Cards 2025 Topps Chrome · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Kon Knueppel [Refractor] #254 sells for $640 against $46.03 raw: a $594 spread, 14× the ungraded price. Even a PSA 9 ($72.59) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
- Raw (NM)
- $46.03
- PSA 10
- $640
- PSA 9
- $72.59
- Gem premium
- 14×
- As of
- Sep 18, 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 | $640 | +$569 | +$544 | +$444 |
| PSA 9 | $72.59 | +$1.56 | −$23.44 | −$123 |
| PSA 8 | $34.10 | −$36.93 | −$61.93 | −$162 |
Net = sale price − $46.03 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% | $214 | +$118 |
| 50% | $356 | +$260 |
| 75% | $498 | +$402 |
Break-even gem rate at the standard fee: about 4%. 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 | $832 | best | 55/45 | 70/30 |
| PSA 10 | $640 | −$192 | 55/45 | 75/25 |
| CGC 10 | $384 | −$448 | 55/45 | 75/25 |
| SGC 10 | $208 | −$624 | 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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Grading Kon Knueppel [Refractor] #254 — FAQ
Is Kon Knueppel [Refractor] #254 worth grading?
A PSA 10 Kon Knueppel [Refractor] #254 sells for $640 against $46.03 raw: a $594 spread, 14× the ungraded price. Even a PSA 9 ($72.59) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. 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] #254 worth compared with raw?
A PSA 10 Kon Knueppel [Refractor] #254 (Basketball Cards 2025 Topps Chrome) sells for about $640 versus $46.03 for a raw near-mint copy — a 14× premium as of Sep 18, 2026.
Which grading company is best for Kon Knueppel [Refractor] #254?
By resale value, BGS 10 leads at $832, ahead of PSA 10 at $640. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Kon Knueppel [Refractor] #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 [Refractor] #254 break even?
At a standard ~$50 fee, submitting Kon Knueppel [Refractor] #254 breaks even when it gems about 4% of the time (a miss assumed to sell at the PSA 9 price of $72.59).
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