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Mary's Impulse (Expedition Base Set 142/165) — is it worth grading?

Is Mary's Impulse worth grading?

Pokémon · Expedition Base Set · 142/165 · full price guide →

Worth grading only if it gems

A PSA 10 Mary's Impulse brings $32.63 versus $2.11 raw — a $30.52 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($19.91) only about breaks even after fees, so the case rests on gemming.

Raw (NM)
$2.11
PSA 10
$32.63
PSA 9
$19.91
Gem premium
15×
As of
Aug 10, 2026

Break-even by outcome and fee

Mary's Impulse: 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$32.63+$5.52−$19.48−$119
PSA 9$19.91−$7.20−$32.20−$132
PSA 8$34.99+$7.88−$17.12−$117

Net = sale price − $2.11 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?

Mary's Impulse: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$23.09−$29.02
50%$26.27−$25.84
75%$29.45−$22.66

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 →
Mary's Impulse: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$32.63best55/4575/25
CGC 10$12.75−$19.8855/4575/25

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.

Mary's Impulse graded prices by company and grade
GradePSACGCBGS
10$157$99.99—
9.5—$9.00—
9$33.97$14.00—
8.5—$34.99$630
8$20.00$15.99—
7$16.00$8.50—
6$9.00——
5.5—$3.00—

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 Expedition Base Set cards worth checking

Full set checklist →

Grading Mary's Impulse — FAQ

Is Mary's Impulse worth grading?

A PSA 10 Mary's Impulse brings $32.63 versus $2.11 raw — a $30.52 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($19.91) only about breaks even after fees, so the case rests on gemming.

How much is a PSA 10 Mary's Impulse worth compared with raw?

A PSA 10 Mary's Impulse (Expedition Base Set 142/165) sells for about $32.63 versus $2.11 for a raw near-mint copy — a 15× premium as of Aug 10, 2026.

Which grading company is best for Mary's Impulse?

By resale value, PSA 10 leads at $32.63, ahead of CGC 10 at $12.75. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Mary's Impulse 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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