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オムスター (ポケモンカード151 139/165) — is it worth grading?

Is オムスター worth grading?

Pokémon · ポケモンカード151 · 139/165 · full price guide →

Grading rarely pays for this card

PSA 10 copies of オムスター sell for $71.12, only $21.12 above the $50.00 raw price — less than an economy-tier grading fee. A PSA 9 ($6.00) 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
$71.12
PSA 9
$6.00
Gem premium
1.4×
As of
Oct 11, 2026

Break-even by outcome and fee

オムスター: 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$71.12−$3.88−$28.88−$129
PSA 9$6.00−$69.00−$94.00−$194
PSA 8$5.00−$70.00−$95.00−$195

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?

オムスター: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$22.28−$77.72
50%$38.56−$61.44
75%$54.84−$45.16

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 →
オムスター: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$120best55/4570/30
PSA 10$76.89−$43.1155/4575/25
CGC 10$25.95−$94.0555/4575/25

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.

オムスター graded prices by company and grade
GradePSACGCBGSSGCACE
10$25.99$13.86$120$12.97$20.20
9.5—$12.00$21.00——
9$12.32$29.00———
8.5—$16.85$11.00——
8$5.00————
4$20.00————

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 オムスター — FAQ

Is オムスター worth grading?

PSA 10 copies of オムスター sell for $71.12, only $21.12 above the $50.00 raw price — less than an economy-tier grading fee. A PSA 9 ($6.00) 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 オムスター worth compared with raw?

A PSA 10 オムスター (ポケモンカード151 139/165) sells for about $71.12 versus $50.00 for a raw near-mint copy — a 1.4× premium as of Oct 11, 2026.

Which grading company is best for オムスター?

By resale value, BGS 10 leads at $120, ahead of PSA 10 at $76.89. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does オムスター need for a BGS 10?

BGS publishes 55/45 front and 70/30 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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