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Fernando Valenzuela #18 (Baseball Cards 1988 Topps Big) — is it worth grading?

Is Fernando Valenzuela #18 worth grading?

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

Strong grading candidate — 37× premium in PSA 10

A PSA 10 Fernando Valenzuela #18 sells for $69.99 against $1.91 raw: a $68.08 spread, 37× the ungraded price. A PSA 9 ($25.45) 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)
$1.91
PSA 10
$69.99
PSA 9
$25.45
Gem premium
37×
As of
Jul 11, 2026

Break-even by outcome and fee

Fernando Valenzuela #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$69.99+$43.08+$18.08−$81.92
PSA 9$25.45−$1.46−$26.46−$126
PSA 8$11.75−$15.16−$40.16−$140

Net = sale price − $1.91 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?

Fernando Valenzuela #18: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$36.58−$15.33
50%$47.72−$4.19
75%$58.85+$6.94

Break-even gem rate at the standard fee: about 59%. 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
Fernando Valenzuela #18: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$91.00best55/4570/30
PSA 10$69.99−$21.0155/4575/25
CGC 10$42.00−$49.0055/4575/25
SGC 10$42.00−$49.0055/4575/25

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.

Fernando Valenzuela #18 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$69.99$42.00$91.00$42.00
9.5$46.03
9$25.45
8$11.75
7$9.00

Run your own numbers

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Other 1988 Topps Big cards worth checking

Full set checklist

Grading Fernando Valenzuela #18 — FAQ

Is Fernando Valenzuela #18 worth grading?

A PSA 10 Fernando Valenzuela #18 sells for $69.99 against $1.91 raw: a $68.08 spread, 37× the ungraded price. A PSA 9 ($25.45) 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 Fernando Valenzuela #18 worth compared with raw?

A PSA 10 Fernando Valenzuela #18 (Baseball Cards 1988 Topps Big) sells for about $69.99 versus $1.91 for a raw near-mint copy — a 37× premium as of Jul 11, 2026.

Which grading company is best for Fernando Valenzuela #18?

By resale value, BGS 10 leads at $91.00, ahead of PSA 10 at $69.99. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Fernando Valenzuela #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.

What gem rate makes grading Fernando Valenzuela #18 break even?

At a standard ~$50 fee, submitting Fernando Valenzuela #18 breaks even when it gems about 59% of the time (a miss assumed to sell at the PSA 9 price of $25.45).

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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