Is Kon Knueppel [Refractor] #SF-24 worth grading?

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Worth grading — even a PSA 9 beats raw

A PSA 10 Kon Knueppel [Refractor] #SF-24 sells for $114 against $7.50 raw: a $106 spread, 15× the ungraded price. Even a PSA 9 ($49.39) 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): $7.50
PSA 10: $114
PSA 9: $49.39
Gem premium: 15×
As of: Sep 4, 2026

Break-even by outcome and fee

Kon Knueppel [Refractor] #SF-24: net result of grading versus selling raw, by outcome and fee tier
If it comes back…	Sells for	Economy / bulk (~$25.00)	Standard (~$50.00)	Express (~$150)
Gem — PSA 10	$114	+$81.29	+$56.29	−$43.71
PSA 9	$49.39	+$16.89	−$8.11	−$108
PSA 8	$11.56	−$20.94	−$45.94	−$146

Net = sale price − $7.50 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?

Kon Knueppel [Refractor] #SF-24: expected value of submitting by gem probability
Chance it gems	Expected sale	Expected net (standard fee)
25%	$65.49	+$7.99
50%	$81.59	+$24.09
75%	$97.69	+$40.19

Break-even gem rate at the standard fee: about 13%. 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 →

Kon Knueppel [Refractor] #SF-24: top-grade value by grading company with centering tolerance
Grader	10 sells for	vs best	Front centering for a 10	Back
BGS 10	$148	best	55/45	70/30
PSA 10	$114	−$34.21	55/45	75/25
SGC 10	$68.00	−$80.00	55/45	75/25
CGC 10	$31.00	−$117	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 →

Kon Knueppel [Refractor] #SF-24 graded prices by company and grade
Grade	PSA	CGC	BGS	SGC	Graded
10	$114	$31.00	$148	$68.00	—
9.5	—	—	—	—	$53.66
9	—	—	—	—	$49.39
8	—	—	—	—	$11.56
7	—	—	—	—	$9.00

Swipe the table for the other grading companies →

Run your own numbers

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Asking priceGrading fee

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Grading Kon Knueppel [Refractor] #SF-24 — FAQ

Is Kon Knueppel [Refractor] #SF-24 worth grading?

How much is a PSA 10 Kon Knueppel [Refractor] #SF-24 worth compared with raw?

A PSA 10 Kon Knueppel [Refractor] #SF-24 (Basketball Cards 2025 Topps Chrome Sleek Finishers) sells for about $114 versus $7.50 for a raw near-mint copy — a 15× premium as of Sep 4, 2026.

Which grading company is best for Kon Knueppel [Refractor] #SF-24?

By resale value, BGS 10 leads at $148, ahead of PSA 10 at $114. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Kon Knueppel [Refractor] #SF-24 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] #SF-24 break even?

At a standard ~$50 fee, submitting Kon Knueppel [Refractor] #SF-24 breaks even when it gems about 13% of the time (a miss assumed to sell at the PSA 9 price of $49.39).

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