Is Kon Knueppel #BB-KK worth grading?
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Strong grading candidate — 11× premium in PSA 10
A PSA 10 Kon Knueppel #BB-KK sells for $46.00 against $4.38 raw: a $41.62 spread, 11× the ungraded price. A PSA 9 ($22.14) 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)
- $4.38
- PSA 10
- $46.00
- PSA 9
- $22.14
- Gem premium
- 11×
- As of
- Sep 3, 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 | $46.00 | +$16.62 | −$8.38 | −$108 |
| PSA 9 | $22.14 | −$7.24 | −$32.24 | −$132 |
| PSA 8 | $8.61 | −$20.77 | −$45.77 | −$146 |
Net = sale price − $4.38 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% | $28.11 | −$26.27 |
| 50% | $34.07 | −$20.31 |
| 75% | $40.03 | −$14.35 |
At the standard fee this submission does not break even at any realistic gem rate unless the miss lands above the 9 price.
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 | $78.00 | best | 55/45 | 75/25 |
| BGS 10 | $60.00 | −$18.00 | 55/45 | 70/30 |
| PSA 10 | $46.00 | −$32.00 | 55/45 | 75/25 |
| SGC 10 | $28.00 | −$50.00 | 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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Full set checklist →Grading Kon Knueppel #BB-KK — FAQ
Is Kon Knueppel #BB-KK worth grading?
A PSA 10 Kon Knueppel #BB-KK sells for $46.00 against $4.38 raw: a $41.62 spread, 11× the ungraded price. A PSA 9 ($22.14) 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 #BB-KK worth compared with raw?
A PSA 10 Kon Knueppel #BB-KK (Basketball Cards 2025 Topps Match Attax Breakthrough Baller) sells for about $46.00 versus $4.38 for a raw near-mint copy — a 11× premium as of Sep 3, 2026.
Which grading company is best for Kon Knueppel #BB-KK?
By resale value, CGC 10 leads at $78.00, ahead of BGS 10 at $60.00. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Kon Knueppel #BB-KK 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.
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