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Mew-EX (XY Black Star Promos XY126) — is it worth grading?

Is Mew-EX worth grading?

Pokémon · XY Black Star Promos · XY126 · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Mew-EX sells for $2,689 against $211 raw: a $2,477 spread, 13× the ungraded price. Even a PSA 9 ($754) 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)
$211
PSA 10
$2,689
PSA 9
$754
Gem premium
13×
As of
Aug 10, 2026

Break-even by outcome and fee

Mew-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$2,689+$2,452+$2,427+$2,327
PSA 9$754+$518+$493+$393
PSA 8$412+$176+$151+$50.83

Net = sale price − $211 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?

Mew-EX: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$1,238+$977
50%$1,722+$1,460
75%$2,205+$1,944

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
Mew-EX: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$2,689best55/4575/25

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.

Mew-EX graded prices by company and grade
GradePSACGCBGSSGCACE
10$2,689
9$754$384
8.5$337$301$458
8$412$237$70.00$450
7.5$157
7$244$130
6$61.18$172
5$79.99
2$100
1$173

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 Mew-EX — FAQ

Is Mew-EX worth grading?

A PSA 10 Mew-EX sells for $2,689 against $211 raw: a $2,477 spread, 13× the ungraded price. Even a PSA 9 ($754) 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 Mew-EX worth compared with raw?

A PSA 10 Mew-EX (XY Black Star Promos XY126) sells for about $2,689 versus $211 for a raw near-mint copy — a 13× premium as of Aug 10, 2026.

What centering does Mew-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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