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Mantine (Steam Siege 27/114) — is it worth grading?

Is Mantine worth grading?

Pokémon · Steam Siege · 27/114 · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Mantine sells for $59.00 against $0.17 raw: a $58.83 spread, 347× the ungraded price. Even a PSA 9 ($39.99) 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)
$0.17
PSA 10
$59.00
PSA 9
$39.99
Gem premium
347×
As of
Aug 10, 2026

Break-even by outcome and fee

Mantine: 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$59.00+$33.83+$8.83−$91.17
PSA 9$39.99+$14.82−$10.18−$110

Net = sale price − $0.17 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?

Mantine: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$44.74−$5.43
50%$49.50−$0.67
75%$54.25+$4.08

Break-even gem rate at the standard fee: about 54%. 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 →
Mantine: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$59.00best55/4575/25

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.

Mantine graded prices by company and grade
GradePSA
10$59.00
9$39.99

Run your own numbers

Should I pay this?

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

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Full set checklist →

Grading Mantine — FAQ

Is Mantine worth grading?

A PSA 10 Mantine sells for $59.00 against $0.17 raw: a $58.83 spread, 347× the ungraded price. Even a PSA 9 ($39.99) 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 Mantine worth compared with raw?

A PSA 10 Mantine (Steam Siege 27/114) sells for about $59.00 versus $0.17 for a raw near-mint copy — a 347× premium as of Aug 10, 2026.

What centering does Mantine 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 Mantine break even?

At a standard ~$50 fee, submitting Mantine breaks even when it gems about 54% of the time (a miss assumed to sell at the PSA 9 price of $39.99).

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