PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $280 |
| PSA 7 | $325.58 |
| PSA 8 | $338.12 |
| PSA 9 | $490.64 |
| PSA 10 | $3475 |
| BGS 10 | $4518 |
| CGC 10 | $875 |
| SGC 10 | $452.56 |
TCGplayer market price: $373.04 (as of 2026-08-29)
Market context: ungraded price -6.7% over 30 days. -5.6% over 90 days. PSA 10 premium: 12.4× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-promo/pokemon-promo-mewtwo-mew-gx-SM191