PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $225 |
| PSA 8 | $155.5 |
| PSA 10 | $850 |
| BGS 10 | $699 |
| CGC 10 | $208.5 |
| SGC 10 | $510 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-shining-legends/pokemon-japanese-shining-legends-mewtwo-gx-80