Is Mewtwo & Mew-GX worth grading?
Pokémon · SM Black Star Promos · SM191 · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Mewtwo & Mew-GX sells for $1,892 against $364 raw: a $1,529 spread, 5.2× the ungraded price. Even a PSA 9 ($551) 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)
- $364
- PSA 10
- $1,892
- PSA 9
- $551
- Gem premium
- 5.2×
- 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 | $1,892 | +$1,504 | +$1,479 | +$1,379 |
| PSA 9 | $551 | +$162 | +$137 | +$36.96 |
| PSA 8 | $363 | −$25.56 | −$50.56 | −$151 |
Net = sale price − $364 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% | $886 | +$472 |
| 50% | $1,222 | +$808 |
| 75% | $1,557 | +$1,143 |
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 →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| PSA 10 | $1,892 | best | 55/45 | 75/25 |
| TAG 10 | $1,703 | −$190 | 55/45 | 72/28 |
| CGC 10 | $833 | −$1,060 | 55/45 | 75/25 |
| BGS 10 | $651 | −$1,241 | 55/45 | 70/30 |
| SGC 10 | $481 | −$1,412 | 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 Mewtwo & Mew-GX — FAQ
Is Mewtwo & Mew-GX worth grading?
A PSA 10 Mewtwo & Mew-GX sells for $1,892 against $364 raw: a $1,529 spread, 5.2× the ungraded price. Even a PSA 9 ($551) 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 Mewtwo & Mew-GX worth compared with raw?
A PSA 10 Mewtwo & Mew-GX (SM Black Star Promos SM191) sells for about $1,892 versus $364 for a raw near-mint copy — a 5.2× premium as of Oct 4, 2026.
Which grading company is best for Mewtwo & Mew-GX?
By resale value, PSA 10 leads at $1,892, ahead of TAG 10 at $1,703. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Mewtwo & Mew-GX 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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