PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $4.5 |
| PSA 8 | $40 |
| PSA 9 | $80.72 |
| PSA 10 | $500.63 |
| BGS 10 | $651 |
| CGC 10 | $245 |
| SGC 10 | $300 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-battle-starter-decks/pokemon-japanese-battle-starter-decks-blastoise-3