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Blastoise (Expedition Base Set 37/165) — is it worth grading?

Is Blastoise worth grading?

Pokémon · Expedition Base Set · 37/165 · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Blastoise sells for $812 against $87.00 raw: a $725 spread, 9.3× the ungraded price. Even a PSA 9 ($323) 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)
$87.00
PSA 10
$812
PSA 9
$323
Gem premium
9.3×
As of
Aug 10, 2026

Break-even by outcome and fee

Blastoise: 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$812+$700+$675+$575
PSA 9$323+$211+$186+$86.44
PSA 8$49.84−$62.16−$87.16−$187

Net = sale price − $87.00 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?

Blastoise: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$446+$309
50%$568+$431
75%$690+$553

Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.

Which grader pays the most — and what a 10 takes

All centering standards
Blastoise: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$812best55/4575/25
CGC 10$689−$12455/4575/25

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.

Blastoise graded prices by company and grade
GradePSACGCBGSSGCTAGACE
10$461$689
9.5$244$410
9$160$318$104
8.5$120$165
8$318$60.00$345$49.99$306
7.5$51.01
7$70.88
6.5$45.00
6$58.20$19.00
5.5$175
5$176$72.00
4.5$25.00
4$160$41.00
3.5$42.00
3$30.00
2.5$25.00
2$165
1$28.90

Run your own numbers

Should I pay this?

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

Other Expedition Base Set cards worth checking

Full set checklist

Grading Blastoise — FAQ

Is Blastoise worth grading?

A PSA 10 Blastoise sells for $812 against $87.00 raw: a $725 spread, 9.3× the ungraded price. Even a PSA 9 ($323) 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 Blastoise worth compared with raw?

A PSA 10 Blastoise (Expedition Base Set 37/165) sells for about $812 versus $87.00 for a raw near-mint copy — a 9.3× premium as of Aug 10, 2026.

Which grading company is best for Blastoise?

By resale value, PSA 10 leads at $812, ahead of CGC 10 at $689. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Blastoise 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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