PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $89.87 |
| PSA 8 | $84.03 |
| PSA 9 | $142.91 |
| PSA 10 | $550 |
| BGS 10 | $715 |
| CGC 10 | $105.97 |
| SGC 10 | $330 |
Market context: ungraded price +7.7% over 30 days. +3.6% over 90 days. PSA 10 premium: 6.1× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-miracle-twins/pokemon-japanese-miracle-twins-mewtwo-mew-gx-97