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ニドクイン (ポケモンカード151 031/165) — is it worth grading?

Is ニドクイン worth grading?

Pokémon · ポケモンカード151 · 031/165 · full price guide →

Grading rarely pays for this card

PSA 10 copies of ニドクイン sell for $44.76, only $0.00 above the $50.00 raw price — less than an economy-tier grading fee. A PSA 9 ($11.57) 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)
$50.00
PSA 10
$44.76
PSA 9
$11.57
Gem premium
0.9×
As of
Oct 11, 2026

Break-even by outcome and fee

ニドクイン: 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$44.76−$30.24−$55.24−$155
PSA 9$11.57−$63.43−$88.43−$188

Net = sale price − $50.00 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?

ニドクイン: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$19.87−$80.13
50%$28.16−$71.84
75%$36.46−$63.54

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 →
ニドクイン: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$52.70best55/4575/25
BGS 10$30.10−$22.6055/4570/30
CGC 10$28.26−$24.4455/4575/25

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.

ニドクイン graded prices by company and grade
GradePSACGCBGSTAG
10$19.73$12.69$30.10$20.82
9.5—$12.00——
9$5.00$15.00——
8.5—$7.00——
6.5—$14.00——
6—$7.00——

Swipe the table for the other grading companies →

Run your own numbers

Should I pay this?

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

Other ポケモンカード151 cards worth checking

Full set checklist →

Grading ニドクイン — FAQ

Is ニドクイン worth grading?

PSA 10 copies of ニドクイン sell for $44.76, only $0.00 above the $50.00 raw price — less than an economy-tier grading fee. A PSA 9 ($11.57) 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 ニドクイン worth compared with raw?

A PSA 10 ニドクイン (ポケモンカード151 031/165) sells for about $44.76 versus $50.00 for a raw near-mint copy — a 0.9× premium as of Oct 11, 2026.

Which grading company is best for ニドクイン?

By resale value, PSA 10 leads at $52.70, ahead of BGS 10 at $30.10. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does ニドクイン 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.

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