Is Kon Knueppel #TC-KK worth grading?
Basketball · Basketball Cards 2025 Topps 1980 Chrome · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Kon Knueppel #TC-KK sells for $129 against $11.80 raw: a $117 spread, 11× the ungraded price. Even a PSA 9 ($37.51) 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)
- $11.80
- PSA 10
- $129
- PSA 9
- $37.51
- Gem premium
- 11×
- 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 | $129 | +$91.95 | +$66.95 | −$33.05 |
| PSA 9 | $37.51 | +$0.71 | −$24.29 | −$124 |
| PSA 8 | $26.95 | −$9.85 | −$34.85 | −$135 |
Net = sale price − $11.80 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% | $60.32 | −$1.48 |
| 50% | $83.13 | +$21.33 |
| 75% | $106 | +$44.14 |
Break-even gem rate at the standard fee: about 27%. 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 |
|---|---|---|---|---|
| SGC 10 | $170 | best | 55/45 | 75/25 |
| BGS 10 | $167 | −$3.00 | 55/45 | 70/30 |
| PSA 10 | $129 | −$41.25 | 55/45 | 75/25 |
| CGC 10 | $88.55 | −$81.45 | 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 | $129 | $88.55 | $167 | $170 | — |
| 9.5 | — | — | — | — | $78.08 |
| 9 | — | — | — | — | $37.51 |
| 8 | — | — | — | — | $26.95 |
| 7 | — | — | — | — | $22.50 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
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Grading Kon Knueppel #TC-KK — FAQ
Is Kon Knueppel #TC-KK worth grading?
A PSA 10 Kon Knueppel #TC-KK sells for $129 against $11.80 raw: a $117 spread, 11× the ungraded price. Even a PSA 9 ($37.51) 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 #TC-KK worth compared with raw?
A PSA 10 Kon Knueppel #TC-KK (Basketball Cards 2025 Topps 1980 Chrome) sells for about $129 versus $11.80 for a raw near-mint copy — a 11× premium as of Jul 11, 2026.
Which grading company is best for Kon Knueppel #TC-KK?
By resale value, SGC 10 leads at $170, ahead of BGS 10 at $167. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Kon Knueppel #TC-KK need for a SGC 10?
SGC 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.
What gem rate makes grading Kon Knueppel #TC-KK break even?
At a standard ~$50 fee, submitting Kon Knueppel #TC-KK breaks even when it gems about 27% of the time (a miss assumed to sell at the PSA 9 price of $37.51).
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.
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