Midpoint - Card Centering Tool

Is X-Men #139 worth grading?

Marvel · Marvel 1990 Universe · full price guide →

Strong grading candidate — 50× premium in PSA 10

A PSA 10 X-Men #139 sells for $64.00 against $1.29 raw: a $62.71 spread, 50× the ungraded price. A PSA 9 ($14.99) 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)
$1.29
PSA 10
$64.00
PSA 9
$14.99
Gem premium
50×
As of
Aug 15, 2026

Break-even by outcome and fee

X-Men #139: 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$64.00+$37.71+$12.71−$87.29
PSA 9$14.99−$11.30−$36.30−$136
PSA 8$10.65−$15.64−$40.64−$141

Net = sale price − $1.29 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?

X-Men #139: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$27.24−$24.05
50%$39.49−$11.80
75%$51.75+$0.46

Break-even gem rate at the standard fee: about 74%. 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
X-Men #139: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$83.00best55/4570/30
PSA 10$64.00−$19.0055/4575/25
SGC 10$45.00−$38.0055/4575/25
CGC 10$21.50−$61.5055/4575/25

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.

X-Men #139 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$64.00$21.50$83.00$45.00
9.5$50.68
9$14.99
8$10.65
7$4.62

Run your own numbers

Should I pay this?

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

Other Marvel 1990 Universe cards worth checking

Full set checklist

Grading X-Men #139 — FAQ

Is X-Men #139 worth grading?

A PSA 10 X-Men #139 sells for $64.00 against $1.29 raw: a $62.71 spread, 50× the ungraded price. A PSA 9 ($14.99) 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 X-Men #139 worth compared with raw?

A PSA 10 X-Men #139 (Marvel 1990 Universe) sells for about $64.00 versus $1.29 for a raw near-mint copy — a 50× premium as of Aug 15, 2026.

Which grading company is best for X-Men #139?

By resale value, BGS 10 leads at $83.00, ahead of PSA 10 at $64.00. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does X-Men #139 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 X-Men #139 break even?

At a standard ~$50 fee, submitting X-Men #139 breaks even when it gems about 74% of the time (a miss assumed to sell at the PSA 9 price of $14.99).

Is your Marvel 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