Midpoint - Card Centering Tool
Kirk Gibson #191 (Baseball Cards 1988 Topps Big) — is it worth grading?

Is Kirk Gibson #191 worth grading?

Baseball · Baseball Cards 1988 Topps Big · full price guide →

Strong grading candidate — 80× premium in PSA 10

A PSA 10 Kirk Gibson #191 sells for $99.99 against $1.25 raw: a $98.74 spread, 80× the ungraded price. A PSA 9 ($9.99) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

Raw (NM)
$1.25
PSA 10
$99.99
PSA 9
$9.99
Gem premium
80×
As of
Jul 11, 2026

Break-even by outcome and fee

Kirk Gibson #191: 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$99.99+$73.74+$48.74−$51.26
PSA 9$9.99−$16.26−$41.26−$141

Net = sale price − $1.25 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?

Kirk Gibson #191: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$32.49−$18.76
50%$54.99+$3.74
75%$77.49+$26.24

Break-even gem rate at the standard fee: about 46%. 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
Kirk Gibson #191: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$130best55/4570/30
PSA 10$99.99−$30.0155/4575/25
CGC 10$60.00−$70.0055/4575/25
SGC 10$60.00−$70.0055/4575/25

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.

Kirk Gibson #191 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$99.99$60.00$130$60.00
9.5$11.00
9$9.99

Run your own numbers

Should I pay this?

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

Other 1988 Topps Big cards worth checking

Full set checklist

Grading Kirk Gibson #191 — FAQ

Is Kirk Gibson #191 worth grading?

A PSA 10 Kirk Gibson #191 sells for $99.99 against $1.25 raw: a $98.74 spread, 80× the ungraded price. A PSA 9 ($9.99) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

How much is a PSA 10 Kirk Gibson #191 worth compared with raw?

A PSA 10 Kirk Gibson #191 (Baseball Cards 1988 Topps Big) sells for about $99.99 versus $1.25 for a raw near-mint copy — a 80× premium as of Jul 11, 2026.

Which grading company is best for Kirk Gibson #191?

By resale value, BGS 10 leads at $130, ahead of PSA 10 at $99.99. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Kirk Gibson #191 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 Kirk Gibson #191 break even?

At a standard ~$50 fee, submitting Kirk Gibson #191 breaks even when it gems about 46% of the time (a miss assumed to sell at the PSA 9 price of $9.99).

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.

Check my card free