PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $27 |
| PSA 9 | $139.7 |
| PSA 10 | $278.47 |
| BGS 10 | $362 |
| CGC 10 | $167 |
| SGC 10 | $167 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-regigigas-half-deck/pokemon-japanese-regigigas-half-deck-mewtwo-card