PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $32.16 |
| PSA 7 | $36 |
| PSA 9 | $89 |
| PSA 10 | $125.75 |
| BGS 10 | $163 |
| CGC 10 | $75 |
| SGC 10 | $75 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-red-flash/pokemon-japanese-red-flash-m-mewtwo-ex-28