Midpoint - Card Centering Tool

Is Gil Coan #18 worth grading?

Baseball · Baseball Cards 1951 Bowman · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Gil Coan #18 sells for $2,147 against $8.50 raw: a $2,139 spread, 253× the ungraded price. Even a PSA 9 ($327) 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)
$8.50
PSA 10
$2,147
PSA 9
$327
Gem premium
253×
As of
Jul 11, 2026

Break-even by outcome and fee

Gil Coan #18: 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$2,147+$2,114+$2,089+$1,989
PSA 9$327+$293+$268+$168
PSA 8$123+$89.00+$64.00−$36.00

Net = sale price − $8.50 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?

Gil Coan #18: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$782+$723
50%$1,237+$1,178
75%$1,692+$1,634

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
Gil Coan #18: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$2,791best55/4570/30
PSA 10$2,147−$64455/4575/25
CGC 10$1,288−$1,50355/4575/25
SGC 10$1,288−$1,50355/4575/25

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.

Gil Coan #18 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$2,147$1,288$2,791$1,288
9.5$600
9$327
8$123
7$45.61

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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Full set checklist

Grading Gil Coan #18 — FAQ

Is Gil Coan #18 worth grading?

A PSA 10 Gil Coan #18 sells for $2,147 against $8.50 raw: a $2,139 spread, 253× the ungraded price. Even a PSA 9 ($327) 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 Gil Coan #18 worth compared with raw?

A PSA 10 Gil Coan #18 (Baseball Cards 1951 Bowman) sells for about $2,147 versus $8.50 for a raw near-mint copy — a 253× premium as of Jul 11, 2026.

Which grading company is best for Gil Coan #18?

By resale value, BGS 10 leads at $2,791, ahead of PSA 10 at $2,147. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Gil Coan #18 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 baseball 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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