PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $151.42 |
| PSA 7 | $309.92 |
| PSA 8 | $569.67 |
| PSA 9 | $1002.69 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-blastoise-1999-2000-2