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Frank Thomas #300 (Baseball Cards 1990 Leaf) — is it worth grading?

Is Frank Thomas #300 worth grading?

Baseball · Baseball Cards 1990 Leaf · full price guide →

Strong grading candidate — 13× premium in PSA 10

A PSA 10 Frank Thomas #300 sells for $220 against $16.93 raw: a $203 spread, 13× the ungraded price. A PSA 9 ($28.89) 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)
$16.93
PSA 10
$220
PSA 9
$28.89
Gem premium
13×
As of
Jul 11, 2026

Break-even by outcome and fee

Frank Thomas #300: 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$220+$178+$153+$53.04
PSA 9$28.89−$13.04−$38.04−$138
PSA 8$19.94−$21.99−$46.99−$147

Net = sale price − $16.93 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?

Frank Thomas #300: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$76.66+$9.73
50%$124+$57.50
75%$172+$105

Break-even gem rate at the standard fee: about 20%. 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
Frank Thomas #300: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$1,526best55/4570/30
PSA 10$220−$1,30655/4575/25
CGC 10$125−$1,40155/4575/25
SGC 10$123−$1,40355/4575/25

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.

Frank Thomas #300 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$220$125$1,526$123
9.5$62.37
9$28.89
8$19.94
7$12.57

Run your own numbers

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Other 1990 Leaf cards worth checking

Full set checklist

Grading Frank Thomas #300 — FAQ

Is Frank Thomas #300 worth grading?

A PSA 10 Frank Thomas #300 sells for $220 against $16.93 raw: a $203 spread, 13× the ungraded price. A PSA 9 ($28.89) 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 Frank Thomas #300 worth compared with raw?

A PSA 10 Frank Thomas #300 (Baseball Cards 1990 Leaf) sells for about $220 versus $16.93 for a raw near-mint copy — a 13× premium as of Jul 11, 2026.

Which grading company is best for Frank Thomas #300?

By resale value, BGS 10 leads at $1,526, ahead of PSA 10 at $220. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Frank Thomas #300 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 Frank Thomas #300 break even?

At a standard ~$50 fee, submitting Frank Thomas #300 breaks even when it gems about 20% of the time (a miss assumed to sell at the PSA 9 price of $28.89).

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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