Is Undersea Ruins worth grading?
Pokémon · Aquapolis · 138/147 · full price guide →
Strong grading candidate — 27× premium in PSA 10
A PSA 10 Undersea Ruins sells for $400 against $14.99 raw: a $385 spread, 27× the ungraded price. A PSA 9 ($25.89) 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)
- $14.99
- PSA 10
- $400
- PSA 9
- $25.89
- Gem premium
- 27×
- 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 | $400 | +$360 | +$335 | +$235 |
| PSA 9 | $25.89 | −$14.10 | −$39.10 | −$139 |
| PSA 8 | $13.00 | −$26.99 | −$51.99 | −$152 |
Net = sale price − $14.99 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% | $119 | +$54.43 |
| 50% | $213 | +$148 |
| 75% | $306 | +$241 |
Break-even gem rate at the standard fee: about 10%. 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 |
|---|---|---|---|---|
| PSA 10 | $747 | 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.
Full grade ladder
Raw conditions & history →| Grade | PSA | CGC |
|---|---|---|
| 10 | $747 | — |
| 9.5 | — | $4.25 |
| 9 | $40.23 | $39.99 |
| 8.5 | — | $13.00 |
| 8 | $13.00 | — |
| 7.5 | — | $20.00 |
| 7 | $10.01 | — |
| 6 | $7.00 | — |
| 5 | $2.00 | — |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
Other Aquapolis cards worth checking
Full set checklist →
Grading Undersea Ruins — FAQ
Is Undersea Ruins worth grading?
A PSA 10 Undersea Ruins sells for $400 against $14.99 raw: a $385 spread, 27× the ungraded price. A PSA 9 ($25.89) 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 Undersea Ruins worth compared with raw?
A PSA 10 Undersea Ruins (Aquapolis 138/147) sells for about $400 versus $14.99 for a raw near-mint copy — a 27× premium as of Aug 10, 2026.
What centering does Undersea Ruins 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 Undersea Ruins break even?
At a standard ~$50 fee, submitting Undersea Ruins breaks even when it gems about 10% of the time (a miss assumed to sell at the PSA 9 price of $25.89).
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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