PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $9 |
| PSA 8 | $8.5 |
| PSA 9 | $23.9 |
| PSA 10 | $79.58 |
| BGS 10 | $103 |
| CGC 10 | $20.48 |
| SGC 10 | $48 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-family/pokemon-japanese-family-mewtwo-gx-25