PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $9.9 |
| PSA 7 | $49.99 |
| PSA 8 | $150 |
| PSA 9 | $165 |
| PSA 10 | $307.91 |
| BGS 10 | $400 |
| CGC 10 | $185 |
| SGC 10 | $185 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-promo/pokemon-promo-blastoise-gx-jumbo-SM189