PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $42.31 |
| PSA 7 | $58.56 |
| PSA 8 | $71.21 |
| PSA 9 | $147.78 |
| PSA 10 | $841.35 |
| BGS 10 | $1094 |
| CGC 10 | $269.31 |
| SGC 10 | $505 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-world-championships-2019/pokemon-world-championships-2019-mewtwo-mew-gx-71