PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $9.81 |
| PSA 9 | $21.25 |
| PSA 10 | $81 |
| BGS 10 | $105 |
| CGC 10 | $40 |
| SGC 10 | $49 |
TCGplayer market price: $8.49 (as of 2026-07-05)
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-gx-battle-boost/pokemon-japanese-gx-battle-boost-mewtwo-gx-36