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 $1,904 against $355 raw: a $1,550 spread, 5.4× the ungraded price. Even a PSA 9 ($437) 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)
- $355
- PSA 10
- $1,904
- PSA 9
- $437
- Gem premium
- 5.4×
- 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 | $1,904 | +$1,525 | +$1,500 | +$1,400 |
| PSA 9 | $437 | +$57.09 | +$32.09 | −$67.91 |
| PSA 8 | $354 | −$26.04 | −$51.04 | −$151 |
Net = sale price − $355 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% | $804 | +$399 |
| 50% | $1,171 | +$766 |
| 75% | $1,537 | +$1,133 |
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 | $1,904 | best | 55/45 | 75/25 |
| CGC 10 | $871 | −$1,033 | 55/45 | 75/25 |
| TAG 10 | $811 | −$1,093 | 55/45 | 72/28 |
| BGS 10 | $651 | −$1,253 | 55/45 | 70/30 |
| SGC 10 | $445 | −$1,460 | 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 | BGS | SGC | TAG | ACE |
|---|---|---|---|---|---|---|
| 10 | $1,904 | $871 | $651 | $445 | $811 | $1,333 |
| 9.5 | — | $696 | $1,145 | $98.93 | $400 | — |
| 9 | $437 | $389 | $482 | $360 | $351 | $428 |
| 8.5 | $300 | $279 | $498 | — | — | — |
| 8 | $354 | $296 | $355 | — | $210 | $415 |
| 7.5 | — | $183 | — | — | — | — |
| 7 | $322 | $91.24 | $29.00 | — | — | — |
| 6.5 | — | $96.55 | — | — | — | — |
| 6 | $169 | $84.59 | — | — | — | — |
| 5.5 | — | $99.00 | — | — | — | — |
| 5 | $228 | — | — | — | — | — |
| 4 | $244 | $15.00 | — | — | — | — |
| 3 | $180 | $69.69 | — | — | — | — |
| 2.5 | — | $77.44 | — | — | — | — |
| 2 | $170 | — | — | — | — | — |
| 1 | $227 | — | — | — | $200 | — |
Run your own numbers
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Other SM Black Star Promos cards worth checking
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Grading Mewtwo & Mew-GX — FAQ
Is Mewtwo & Mew-GX worth grading?
A PSA 10 Mewtwo & Mew-GX sells for $1,904 against $355 raw: a $1,550 spread, 5.4× the ungraded price. Even a PSA 9 ($437) 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 $1,904 versus $355 for a raw near-mint copy — a 5.4× premium as of Aug 10, 2026.
Which grading company is best for Mewtwo & Mew-GX?
By resale value, PSA 10 leads at $1,904, ahead of CGC 10 at $871. 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.
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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