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Mewtwo-EX (XY Black Star Promos XY125) — is it worth grading?

Is Mewtwo-EX worth grading?

Pokémon · XY Black Star Promos · XY125 · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Mewtwo-EX sells for $6,523 against $131 raw: a $6,392 spread, 50× the ungraded price. Even a PSA 9 ($702) 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)
$131
PSA 10
$6,523
PSA 9
$702
Gem premium
50×
As of
Aug 10, 2026

Break-even by outcome and fee

Mewtwo-EX: 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$6,523+$6,367+$6,342+$6,242
PSA 9$702+$545+$520+$420
PSA 8$249+$92.20+$67.20−$32.80

Net = sale price − $131 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?

Mewtwo-EX: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$2,157+$1,975
50%$3,612+$3,431
75%$5,068+$4,886

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
Mewtwo-EX: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$6,523best55/4575/25

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.

Mewtwo-EX graded prices by company and grade
GradePSACGCBGSSGC
10$6,523
9$702$87.81
8.5$132$81.00
8$249$112$136
7.5$70.00
7$142
6$63.86$45.00
5$79.06
4$30.01
1$158

Run your own numbers

Should I pay this?

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

Other XY Black Star Promos cards worth checking

Full set checklist

Grading Mewtwo-EX — FAQ

Is Mewtwo-EX worth grading?

A PSA 10 Mewtwo-EX sells for $6,523 against $131 raw: a $6,392 spread, 50× the ungraded price. Even a PSA 9 ($702) 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 Mewtwo-EX worth compared with raw?

A PSA 10 Mewtwo-EX (XY Black Star Promos XY125) sells for about $6,523 versus $131 for a raw near-mint copy — a 50× premium as of Aug 10, 2026.

What centering does Mewtwo-EX need for a PSA 10?

PSA publishes 55/45 front and 75/25 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 Pokémon 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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