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Tapu Koko-GX (SM Black Star Promos SM33) — is it worth grading?

Is Tapu Koko-GX worth grading?

Pokémon · SM Black Star Promos · SM33 · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Tapu Koko-GX sells for $50.00 against $2.44 raw: a $47.56 spread, 20× the ungraded price. Even a PSA 9 ($31.69) 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)
$2.44
PSA 10
$50.00
PSA 9
$31.69
Gem premium
20×
As of
Aug 10, 2026

Break-even by outcome and fee

Tapu Koko-GX: 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$50.00+$22.56−$2.44−$102
PSA 9$31.69+$4.25−$20.75−$121
PSA 8$8.50−$18.94−$43.94−$144

Net = sale price − $2.44 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?

Tapu Koko-GX: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$36.27−$16.17
50%$40.84−$11.59
75%$45.42−$7.02

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 →
Tapu Koko-GX: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$50.00best55/4575/25

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.

Tapu Koko-GX graded prices by company and grade
GradePSACGC
10$50.00—
9$31.69$9.00
8$8.50$4.00
6$8.50—

Run your own numbers

Should I pay this?

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

Other SM Black Star Promos cards worth checking

Full set checklist →

Grading Tapu Koko-GX — FAQ

Is Tapu Koko-GX worth grading?

A PSA 10 Tapu Koko-GX sells for $50.00 against $2.44 raw: a $47.56 spread, 20× the ungraded price. Even a PSA 9 ($31.69) 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 Tapu Koko-GX worth compared with raw?

A PSA 10 Tapu Koko-GX (SM Black Star Promos SM33) sells for about $50.00 versus $2.44 for a raw near-mint copy — a 20× premium as of Aug 10, 2026.

What centering does Tapu Koko-GX 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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