Is Koga's Grimer worth grading?
Pokémon · Gym Challenge · 78/132 · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Koga's Grimer sells for $117 against $4.43 raw: a $112 spread, 26× the ungraded price. Even a PSA 9 ($35.76) 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)
- $4.43
- PSA 10
- $117
- PSA 9
- $35.76
- Gem premium
- 26×
- As of
- Aug 20, 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 | $117 | +$87.07 | +$62.07 | −$37.93 |
| PSA 9 | $35.76 | +$6.33 | −$18.67 | −$119 |
| PSA 8 | $27.92 | −$1.51 | −$26.51 | −$127 |
Net = sale price − $4.43 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% | $55.95 | +$1.52 |
| 50% | $76.13 | +$21.70 |
| 75% | $96.31 | +$41.88 |
Break-even gem rate at the standard fee: about 23%. 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 | $117 | best | 55/45 | 75/25 |
| CGC 10 | $37.94 | −$78.56 | 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 Koga's Grimer — FAQ
Is Koga's Grimer worth grading?
A PSA 10 Koga's Grimer sells for $117 against $4.43 raw: a $112 spread, 26× the ungraded price. Even a PSA 9 ($35.76) 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 Koga's Grimer worth compared with raw?
A PSA 10 Koga's Grimer (Gym Challenge 78/132) sells for about $117 versus $4.43 for a raw near-mint copy — a 26× premium as of Aug 20, 2026.
Which grading company is best for Koga's Grimer?
By resale value, PSA 10 leads at $117, ahead of CGC 10 at $37.94. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Koga's Grimer 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 Koga's Grimer break even?
At a standard ~$50 fee, submitting Koga's Grimer breaks even when it gems about 23% of the time (a miss assumed to sell at the PSA 9 price of $35.76).
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