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ポリゴン (拡張シート1 No.137) — is it worth grading?

Is ポリゴン worth grading?

Pokémon · 拡張シート1 · No.137 · full price guide →

Grading rarely pays for this card

PSA 10 copies of ポリゴン sell for $672, only $0.00 above the $2,000 raw price — less than an economy-tier grading fee. A PSA 9 ($136) sells for less than raw, so anything short of a 10 loses money. Keep it raw unless you are grading for the slab itself.

Raw (NM)
$2,000
PSA 10
$672
PSA 9
$136
Gem premium
0.3×
As of
Aug 10, 2026

Break-even by outcome and fee

ポリゴン: 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$672−$1,353−$1,378−$1,478
PSA 9$136−$1,889−$1,914−$2,014
PSA 8$63.05−$1,962−$1,987−$2,087

Net = sale price − $2,000 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?

ポリゴン: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$270−$1,780
50%$404−$1,646
75%$538−$1,512

At the standard fee this submission does not break even at any realistic gem rate unless the miss lands above the 9 price.

Which grader pays the most — and what a 10 takes

All centering standards
ポリゴン: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$672best55/4575/25
CGC 10$180−$49255/4575/25

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.

ポリゴン graded prices by company and grade
GradePSACGCACE
10$672$180$642
9.5$102
9$136$69.90$63.90
8.5$22.95
8$63.05
7$11.67$25.99
6$39.90
5$28.03

Run your own numbers

Should I pay this?

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

Other 拡張シート1 cards worth checking

Full set checklist

Grading ポリゴン — FAQ

Is ポリゴン worth grading?

PSA 10 copies of ポリゴン sell for $672, only $0.00 above the $2,000 raw price — less than an economy-tier grading fee. A PSA 9 ($136) sells for less than raw, so anything short of a 10 loses money. Keep it raw unless you are grading for the slab itself.

How much is a PSA 10 ポリゴン worth compared with raw?

A PSA 10 ポリゴン (拡張シート1 No.137) sells for about $672 versus $2,000 for a raw near-mint copy — a 0.3× premium as of Aug 10, 2026.

Which grading company is best for ポリゴン?

By resale value, PSA 10 leads at $672, ahead of CGC 10 at $180. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does ポリゴン 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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