Is Kon Knueppel [Refractor Geometric Purple] #CHR-KK worth grading?
Basketball · Basketball Cards 2025 Topps Chrome Chromograph Rookie · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Kon Knueppel [Refractor Geometric Purple] #CHR-KK sells for $3,560 against $814 raw: a $2,746 spread, 4.4× the ungraded price. Even a PSA 9 ($1,279) 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)
- $814
- PSA 10
- $3,560
- PSA 9
- $1,279
- Gem premium
- 4.4×
- 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 | $3,560 | +$2,721 | +$2,696 | +$2,596 |
| PSA 9 | $1,279 | +$440 | +$415 | +$315 |
| PSA 8 | $745 | −$93.84 | −$119 | −$219 |
Net = sale price − $814 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% | $1,850 | +$985 |
| 50% | $2,420 | +$1,556 |
| 75% | $2,990 | +$2,126 |
Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.
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 | $4,628 | best | 55/45 | 70/30 |
| PSA 10 | $3,560 | −$1,068 | 55/45 | 75/25 |
| CGC 10 | $2,136 | −$2,492 | 55/45 | 75/25 |
| SGC 10 | $2,136 | −$2,492 | 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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Enter the seller’s asking price to see your net outcome per grade.
Other 2025 Topps Chrome Chromograph Rookie cards worth checking
Full set checklist →![Kon Knueppel [Refractor Purple] #CHR-KK 2025 Topps Chrome Chromograph Rookie card](https://i.ebayimg.com/images/g/TzsAAeSwMDlqYGHn/s-l500.jpg)
Grading Kon Knueppel [Refractor Geometric Purple] #CHR-KK — FAQ
Is Kon Knueppel [Refractor Geometric Purple] #CHR-KK worth grading?
A PSA 10 Kon Knueppel [Refractor Geometric Purple] #CHR-KK sells for $3,560 against $814 raw: a $2,746 spread, 4.4× the ungraded price. Even a PSA 9 ($1,279) 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 Geometric Purple] #CHR-KK worth compared with raw?
A PSA 10 Kon Knueppel [Refractor Geometric Purple] #CHR-KK (Basketball Cards 2025 Topps Chrome Chromograph Rookie) sells for about $3,560 versus $814 for a raw near-mint copy — a 4.4× premium as of Sep 4, 2026.
Which grading company is best for Kon Knueppel [Refractor Geometric Purple] #CHR-KK?
By resale value, BGS 10 leads at $4,628, ahead of PSA 10 at $3,560. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Kon Knueppel [Refractor Geometric Purple] #CHR-KK 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.
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