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スリーパー (化石の秘密 No.097) — is it worth grading?

Is スリーパー worth grading?

Pokémon · 化石の秘密 · No.097 · full price guide →

Grading rarely pays for this card

PSA 10 copies of スリーパー sell for $488, only $0.00 above the $6,000 raw price — less than an economy-tier grading fee. A PSA 9 ($89.19) 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)
$6,000
PSA 10
$488
PSA 9
$89.19
Gem premium
0.1×
As of
Aug 10, 2026

Break-even by outcome and fee

スリーパー: 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$488−$5,537−$5,562−$5,662
PSA 9$89.19−$5,936−$5,961−$6,061
PSA 8$53.98−$5,971−$5,996−$6,096

Net = sale price − $6,000 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?

スリーパー: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$189−$5,861
50%$288−$5,762
75%$388−$5,662

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
スリーパー: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$488best55/4575/25
CGC 10$156−$33255/4575/25

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.

スリーパー graded prices by company and grade
GradePSACGCBGSSGCTAGACE
10$488$156$269
9.5$86.76$90.00$56.99
9$89.19$53.05$26.00$29.11
8.5$35.32$45.99$29.00
8$53.98$38.88$17.00$21.00
7.5$27.41
7$30.52$28.92$5.00
6.5$13.39
6$21.58$19.96
5.5$22.46
5$16.25
4$19.07$2.00
3.5$3.00
3$7.00
2$12.00

Run your own numbers

Should I pay this?

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

Other 化石の秘密 cards worth checking

Full set checklist

Grading スリーパー — FAQ

Is スリーパー worth grading?

PSA 10 copies of スリーパー sell for $488, only $0.00 above the $6,000 raw price — less than an economy-tier grading fee. A PSA 9 ($89.19) 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 スリーパー worth compared with raw?

A PSA 10 スリーパー (化石の秘密 No.097) sells for about $488 versus $6,000 for a raw near-mint copy — a 0.1× premium as of Aug 10, 2026.

Which grading company is best for スリーパー?

By resale value, PSA 10 leads at $488, ahead of CGC 10 at $156. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does スリーパー 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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