Midpoint - Card Centering Tool
Lonnie Walker IV [Silver Prizm] #251 (Basketball Cards 2018 Panini Prizm) — is it worth grading?

Is Lonnie Walker IV [Silver Prizm] #251 worth grading?

Basketball · Basketball Cards 2018 Panini Prizm · full price guide →

Grading rarely pays for this card

PSA 10 copies of Lonnie Walker IV [Silver Prizm] #251 sell for $8.25, only $5.51 above the $2.74 raw price — less than an economy-tier grading fee. A PSA 9 ($5.23) only about breaks even after fees, so the case rests on gemming. Keep it raw unless you are grading for the slab itself.

Raw (NM)
$2.74
PSA 10
$8.25
PSA 9
$5.23
Gem premium
3.0×
As of
Jul 11, 2026

Break-even by outcome and fee

Lonnie Walker IV [Silver Prizm] #251: net result of grading versus selling raw, by outcome and fee tier
If it comes back…Sells forEconomy / bulk (~$25.00)Standard (~$50.00)Express (~$150)
Gem — PSA 10$8.25−$19.49−$44.49−$144
PSA 9$5.23−$22.51−$47.51−$148
PSA 8$4.00−$23.74−$48.74−$149

Net = sale price − $2.74 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?

Lonnie Walker IV [Silver Prizm] #251: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$5.99−$46.76
50%$6.74−$46.00
75%$7.50−$45.24

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
Lonnie Walker IV [Silver Prizm] #251: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$11.00best55/4570/30
SGC 10$9.95−$1.0555/4575/25
PSA 10$8.25−$2.7555/4575/25
CGC 10$5.00−$6.0055/4575/25

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.

Lonnie Walker IV [Silver Prizm] #251 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$8.25$5.00$11.00$9.95
9.5$6.00
9$5.23
8$4.00
7$3.00

Run your own numbers

Should I pay this?

Enter the seller’s asking price to see your net outcome per grade.

Other 2018 Panini Prizm cards worth checking

Full set checklist

Grading Lonnie Walker IV [Silver Prizm] #251 — FAQ

Is Lonnie Walker IV [Silver Prizm] #251 worth grading?

PSA 10 copies of Lonnie Walker IV [Silver Prizm] #251 sell for $8.25, only $5.51 above the $2.74 raw price — less than an economy-tier grading fee. A PSA 9 ($5.23) only about breaks even after fees, so the case rests on gemming. Keep it raw unless you are grading for the slab itself.

How much is a PSA 10 Lonnie Walker IV [Silver Prizm] #251 worth compared with raw?

A PSA 10 Lonnie Walker IV [Silver Prizm] #251 (Basketball Cards 2018 Panini Prizm) sells for about $8.25 versus $2.74 for a raw near-mint copy — a 3.0× premium as of Jul 11, 2026.

Which grading company is best for Lonnie Walker IV [Silver Prizm] #251?

By resale value, BGS 10 leads at $11.00, ahead of SGC 10 at $9.95. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Lonnie Walker IV [Silver Prizm] #251 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.

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.

Check my card free