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Tapu Koko-GX (SM Black Star Promos SM50) — is it worth grading?

Is Tapu Koko-GX worth grading?

Pokémon · SM Black Star Promos · SM50 · full price guide →

Strong grading candidate — 57× premium in PSA 10

A PSA 10 Tapu Koko-GX sells for $125 against $2.19 raw: a $123 spread, 57× the ungraded price. A PSA 9 ($18.00) 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)
$2.19
PSA 10
$125
PSA 9
$18.00
Gem premium
57×
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$125+$97.81+$72.81−$27.19
PSA 9$18.00−$9.19−$34.19−$134
PSA 8$19.09−$8.10−$33.10−$133

Net = sale price − $2.19 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%$44.75−$7.44
50%$71.50+$19.31
75%$98.25+$46.06

Break-even gem rate at the standard fee: about 32%. 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
Tapu Koko-GX: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$125best55/4575/25
CGC 10$26.00−$99.0055/4575/25

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$125$26.00
9$29.97
8$19.09
7$7.00
6$3.25
4$6.00

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 $125 against $2.19 raw: a $123 spread, 57× the ungraded price. A PSA 9 ($18.00) 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 Tapu Koko-GX worth compared with raw?

A PSA 10 Tapu Koko-GX (SM Black Star Promos SM50) sells for about $125 versus $2.19 for a raw near-mint copy — a 57× premium as of Aug 10, 2026.

Which grading company is best for Tapu Koko-GX?

By resale value, PSA 10 leads at $125, ahead of CGC 10 at $26.00. Fees and turnaround differ, so the best-paying label is not always the best net.

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.

What gem rate makes grading Tapu Koko-GX break even?

At a standard ~$50 fee, submitting Tapu Koko-GX breaks even when it gems about 32% of the time (a miss assumed to sell at the PSA 9 price of $18.00).

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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