Is Cornerstone Mask Ogerpon ex worth grading?
Pokémon · Prismatic Evolutions · 058/131 · full price guide →
Strong grading candidate — 54× premium in PSA 10
A PSA 10 Cornerstone Mask Ogerpon ex sells for $50.00 against $0.93 raw: a $49.07 spread, 54× the ungraded price. A PSA 9 ($13.62) 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)
- $0.93
- PSA 10
- $50.00
- PSA 9
- $13.62
- Gem premium
- 54×
- As of
- Aug 10, 2026
Break-even by outcome and fee
| If it comes back… | Sells for | Economy / bulk (~$25.00) | Standard (~$50.00) | Express (~$150) |
|---|---|---|---|---|
| Gem — PSA 10 | $50.00 | +$24.07 | −$0.93 | −$101 |
| PSA 9 | $13.62 | −$12.31 | −$37.31 | −$137 |
| PSA 8 | $13.97 | −$11.96 | −$36.96 | −$137 |
Net = sale price − $0.93 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?
| Chance it gems | Expected sale | Expected net (standard fee) |
|---|---|---|
| 25% | $22.71 | −$28.21 |
| 50% | $31.81 | −$19.12 |
| 75% | $40.91 | −$10.02 |
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 →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| PSA 10 | $50.00 | best | 55/45 | 75/25 |
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.
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Grading Cornerstone Mask Ogerpon ex — FAQ
Is Cornerstone Mask Ogerpon ex worth grading?
A PSA 10 Cornerstone Mask Ogerpon ex sells for $50.00 against $0.93 raw: a $49.07 spread, 54× the ungraded price. A PSA 9 ($13.62) 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 Cornerstone Mask Ogerpon ex worth compared with raw?
A PSA 10 Cornerstone Mask Ogerpon ex (Prismatic Evolutions 058/131) sells for about $50.00 versus $0.93 for a raw near-mint copy — a 54× premium as of Aug 10, 2026.
What centering does Cornerstone Mask Ogerpon ex 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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