Is Cornerstone Mask Ogerpon ex worth grading?
Pokémon · Prismatic Evolutions · 160/131 · full price guide →
Strong grading candidate — 7.0× premium in PSA 10
A PSA 10 Cornerstone Mask Ogerpon ex sells for $94.53 against $13.50 raw: a $81.03 spread, 7.0× the ungraded price. A PSA 9 ($24.94) 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)
- $13.50
- PSA 10
- $94.53
- PSA 9
- $24.94
- Gem premium
- 7.0×
- As of
- Oct 4, 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 | $94.53 | +$56.03 | +$31.03 | −$68.97 |
| PSA 9 | $24.94 | −$13.56 | −$38.56 | −$139 |
| PSA 8 | $16.29 | −$22.21 | −$47.21 | −$147 |
Net = sale price − $13.50 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% | $42.34 | −$21.16 |
| 50% | $59.73 | −$3.77 |
| 75% | $77.13 | +$13.63 |
Break-even gem rate at the standard fee: about 55%. 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 →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| TAG 10 | $103 | best | 55/45 | 72/28 |
| PSA 10 | $94.53 | −$8.87 | 55/45 | 75/25 |
| SGC 10 | $47.00 | −$56.40 | 55/45 | 75/25 |
| CGC 10 | $24.87 | −$78.53 | 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.
Full grade ladder
Raw conditions & history →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 Prismatic Evolutions cards worth checking
Full set checklist →
Grading Cornerstone Mask Ogerpon ex — FAQ
Is Cornerstone Mask Ogerpon ex worth grading?
A PSA 10 Cornerstone Mask Ogerpon ex sells for $94.53 against $13.50 raw: a $81.03 spread, 7.0× the ungraded price. A PSA 9 ($24.94) 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 160/131) sells for about $94.53 versus $13.50 for a raw near-mint copy — a 7.0× premium as of Oct 4, 2026.
Which grading company is best for Cornerstone Mask Ogerpon ex?
By resale value, TAG 10 leads at $103, ahead of PSA 10 at $94.53. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Cornerstone Mask Ogerpon ex need for a TAG 10?
TAG publishes 55/45 front and 72/28 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 Cornerstone Mask Ogerpon ex break even?
At a standard ~$50 fee, submitting Cornerstone Mask Ogerpon ex breaks even when it gems about 55% of the time (a miss assumed to sell at the PSA 9 price of $24.94).
Best on iPhone & Android
Check your Pokémon card in the Midpoint app
Scan with your camera to measure centering to the millimeter, get an AI grade with corner and edge close-ups, see what your copy is worth, and track it in your portfolio. Free to start.
