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Slowbro (Aquapolis 33/147) — is it worth grading?

Is Slowbro worth grading?

Pokémon · Aquapolis · 33/147 · full price guide →

Strong grading candidate — 9.8× premium in PSA 10

A PSA 10 Slowbro sells for $1,300 against $132 raw: a $1,168 spread, 9.8× the ungraded price. A PSA 9 ($157) 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)
$132
PSA 10
$1,300
PSA 9
$157
Gem premium
9.8×
As of
Oct 2, 2026

Break-even by outcome and fee

Slowbro: 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$1,300+$1,143+$1,118+$1,018
PSA 9$157−$0.03−$25.03−$125
PSA 8$89.70−$67.29−$92.29−$192

Net = sale price − $132 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?

Slowbro: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$443+$261
50%$728+$546
75%$1,014+$832

Break-even gem rate at the standard fee: about 2%. 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 →
Slowbro: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$4,000best55/4575/25

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.

Slowbro graded prices by company and grade
GradePSACGCBGSTAGACE
10$4,000$84.97——$204
9.5—$60.00$154——
9$519$255———
8.5—$179———
8$247$261———
7$221$25.00———
6$89.54$18.00———
5$10.00——$300—

Swipe the table for the other grading companies →

Run your own numbers

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

Other Aquapolis cards worth checking

Full set checklist →

Grading Slowbro — FAQ

Is Slowbro worth grading?

A PSA 10 Slowbro sells for $1,300 against $132 raw: a $1,168 spread, 9.8× the ungraded price. A PSA 9 ($157) 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.

How much is a PSA 10 Slowbro worth compared with raw?

A PSA 10 Slowbro (Aquapolis 33/147) sells for about $1,300 versus $132 for a raw near-mint copy — a 9.8× premium as of Oct 2, 2026.

What centering does Slowbro 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 Slowbro break even?

At a standard ~$50 fee, submitting Slowbro breaks even when it gems about 2% of the time (a miss assumed to sell at the PSA 9 price of $157).

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