PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $23.91 |
| PSA 9 | $29.4 |
| PSA 10 | $186.13 |
| BGS 10 | $242 |
| CGC 10 | $33.96 |
| SGC 10 | $112 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-25th-anniversary-promo/pokemon-japanese-25th-anniversary-promo-mewtwo-ex-22