PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $1.99 |
| PSA 7 | $12 |
| PSA 8 | $20.2 |
| PSA 9 | $41 |
| PSA 10 | $156.77 |
| BGS 10 | $204 |
| CGC 10 | $43.38 |
| SGC 10 | $15 |
TCGplayer market price: $2.17 (as of 2026-10-20)
Market context: ungraded price -0.5% over 30 days. -0.5% over 90 days. PSA 10 premium: 78.8× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-professor-oak-88