Midpoint - Card Centering Tool
Alolan Marowak-GX (SM Black Star Promos SM187) — is it worth grading?

Is Alolan Marowak-GX worth grading?

Pokémon · SM Black Star Promos · SM187 · full price guide →

Strong grading candidate — 4.6× premium in PSA 10

A PSA 10 Alolan Marowak-GX sells for $104 against $22.50 raw: a $81.58 spread, 4.6× the ungraded price. A PSA 9 ($32.83) 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)
$22.50
PSA 10
$104
PSA 9
$32.83
Gem premium
4.6×
As of
Aug 10, 2026

Break-even by outcome and fee

Alolan Marowak-GX: 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$104+$56.58+$31.58−$68.42
PSA 9$32.83−$14.67−$39.67−$140
PSA 8$16.00−$31.50−$56.50−$157

Net = sale price − $22.50 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?

Alolan Marowak-GX: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$50.64−$21.86
50%$68.45−$4.05
75%$86.27+$13.77

Break-even gem rate at the standard fee: about 56%. 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
Alolan Marowak-GX: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$265best55/4575/25

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.

Alolan Marowak-GX graded prices by company and grade
GradePSACGC
10$265
9$46.00$10.00
8$16.00
7$3.00
6.5$39.99
6$20.00
5$6.00

Run your own numbers

Should I pay this?

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

Other SM Black Star Promos cards worth checking

Full set checklist

Grading Alolan Marowak-GX — FAQ

Is Alolan Marowak-GX worth grading?

A PSA 10 Alolan Marowak-GX sells for $104 against $22.50 raw: a $81.58 spread, 4.6× the ungraded price. A PSA 9 ($32.83) 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 Alolan Marowak-GX worth compared with raw?

A PSA 10 Alolan Marowak-GX (SM Black Star Promos SM187) sells for about $104 versus $22.50 for a raw near-mint copy — a 4.6× premium as of Aug 10, 2026.

What centering does Alolan Marowak-GX 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.

What gem rate makes grading Alolan Marowak-GX break even?

At a standard ~$50 fee, submitting Alolan Marowak-GX breaks even when it gems about 56% of the time (a miss assumed to sell at the PSA 9 price of $32.83).

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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