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Onix (Southern Islands 3/18) — is it worth grading?

Is Onix worth grading?

Pokémon · Southern Islands · 3/18 · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Onix sells for $523 against $53.07 raw: a $470 spread, 9.9× the ungraded price. Even a PSA 9 ($125) 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)
$53.07
PSA 10
$523
PSA 9
$125
Gem premium
9.9×
As of
Aug 10, 2026

Break-even by outcome and fee

Onix: 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$523+$445+$420+$320
PSA 9$125+$47.01+$22.01−$77.99
PSA 8$40.41−$37.66−$62.66−$163

Net = sale price − $53.07 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?

Onix: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$225+$122
50%$324+$221
75%$424+$321

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 →
Onix: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
PSA 10$523best55/4575/25
CGC 10$150−$37355/4575/25

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.

Onix graded prices by company and grade
GradePSACGCBGS
10$523$150—
9.5——$88.00
9$125$89.12$35.00
8.5—$22.11—
8$40.41$40.00—
7$49.45——
6.5—$27.27—
6$94.69——
5$39.97——
2$44.00——
1$160——

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 Southern Islands cards worth checking

Full set checklist →

Grading Onix — FAQ

Is Onix worth grading?

A PSA 10 Onix sells for $523 against $53.07 raw: a $470 spread, 9.9× the ungraded price. Even a PSA 9 ($125) 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 Onix worth compared with raw?

A PSA 10 Onix (Southern Islands 3/18) sells for about $523 versus $53.07 for a raw near-mint copy — a 9.9× premium as of Aug 10, 2026.

Which grading company is best for Onix?

By resale value, PSA 10 leads at $523, ahead of CGC 10 at $150. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Onix 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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