Midpoint - Card Centering Tool
Marill (Aquapolis 53/147) — is it worth grading?

Is Marill worth grading?

Pokémon · Aquapolis · 53/147 · full price guide →

Strong grading candidate — 16× premium in PSA 9

A PSA 9 Marill sells for $388 against $24.74 raw: a $363 spread, 16× the ungraded price. A PSA 9 ($31.74) 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)
$24.74
PSA 9
$388
PSA 9
$31.74
Gem premium
16×
As of
Aug 10, 2026

Break-even by outcome and fee

Marill: 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 9$388+$338+$313+$213
PSA 9$31.74−$18.00−$43.00−$143
PSA 8$39.86−$9.88−$34.88−$135

Net = sale price − $24.74 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?

Marill: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$121+$46.08
50%$210+$135
75%$299+$224

Break-even gem rate at the standard fee: about 12%. 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
Marill: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
CGC 10$36.00best55/4575/25

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.

Marill graded prices by company and grade
GradePSACGCACE
10$36.00
9$388$143
8.5$29.99
8$200$87.74
7$12.00
6$22.96
1$35.00

Run your own numbers

Should I pay this?

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

Other Aquapolis cards worth checking

Full set checklist

Grading Marill — FAQ

Is Marill worth grading?

A PSA 9 Marill sells for $388 against $24.74 raw: a $363 spread, 16× the ungraded price. A PSA 9 ($31.74) 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.

What centering does Marill need for a CGC 10?

CGC 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 Marill break even?

At a standard ~$50 fee, submitting Marill breaks even when it gems about 12% of the time (a miss assumed to sell at the PSA 9 price of $31.74).

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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