PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $1025 |
| PSA 7 | $3797.47 |
| PSA 8 | $5688.99 |
| PSA 9 | $10296.14 |
| PSA 10 | $16242.42 |
| BGS 10 | $21115 |
| CGC 10 | $8892.59 |
| SGC 10 | $9745 |
Market context: ungraded price -22.4% over 30 days. -12.7% over 90 days. PSA 10 premium: 15.8× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-blastoise-1st-edition-2