Is Kon Knueppel #MR-4 worth grading?
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Strong grading candidate — 13× premium in PSA 10
A PSA 10 Kon Knueppel #MR-4 sells for $113 against $8.79 raw: a $104 spread, 13× the ungraded price. A PSA 9 ($25.20) 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)
- $8.79
- PSA 10
- $113
- PSA 9
- $25.20
- Gem premium
- 13×
- 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 | $113 | +$79.20 | +$54.20 | −$45.80 |
| PSA 9 | $25.20 | −$8.59 | −$33.59 | −$134 |
| PSA 8 | $13.74 | −$20.05 | −$45.05 | −$145 |
Net = sale price − $8.79 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% | $47.15 | −$11.64 |
| 50% | $69.09 | +$10.30 |
| 75% | $91.04 | +$32.25 |
Break-even gem rate at the standard fee: about 38%. 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 | $147 | best | 55/45 | 70/30 |
| PSA 10 | $113 | −$34.01 | 55/45 | 75/25 |
| CGC 10 | $68.00 | −$79.00 | 55/45 | 75/25 |
| SGC 10 | $68.00 | −$79.00 | 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 #MR-4 — FAQ
Is Kon Knueppel #MR-4 worth grading?
A PSA 10 Kon Knueppel #MR-4 sells for $113 against $8.79 raw: a $104 spread, 13× the ungraded price. A PSA 9 ($25.20) 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 #MR-4 worth compared with raw?
A PSA 10 Kon Knueppel #MR-4 (Basketball Cards 2025 Bowman Mega Rookie) sells for about $113 versus $8.79 for a raw near-mint copy — a 13× premium as of Sep 4, 2026.
Which grading company is best for Kon Knueppel #MR-4?
By resale value, BGS 10 leads at $147, ahead of PSA 10 at $113. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Kon Knueppel #MR-4 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 #MR-4 break even?
At a standard ~$50 fee, submitting Kon Knueppel #MR-4 breaks even when it gems about 38% of the time (a miss assumed to sell at the PSA 9 price of $25.20).
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