PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $1.53 |
| PSA 7 | $15 |
| PSA 8 | $31 |
| PSA 9 | $48.94 |
| PSA 10 | $129.97 |
| BGS 10 | $169 |
| CGC 10 | $43.58 |
| SGC 10 | $15 |
TCGplayer market price: $1.51 (as of 2026-07-05)
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-professor-oak-88