PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $4.99 |
| PSA 7 | $7 |
| PSA 8 | $9.01 |
| PSA 9 | $19.49 |
| PSA 10 | $111.16 |
| BGS 10 | $145 |
| CGC 10 | $31.93 |
| SGC 10 | $67 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-2020-battle-academy/pokemon-2020-battle-academy-mewtwo-gx-31