PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $1.62 |
| PSA 7 | $13.57 |
| PSA 8 | $19.87 |
| PSA 9 | $47.99 |
| PSA 10 | $129.99 |
| BGS 10 | $169 |
| CGC 10 | $44.99 |
| SGC 10 | $15 |
TCGplayer market price: $2.26 (as of 2026-08-29)
Market context: ungraded price -18.6% over 30 days. -19.0% over 90 days. PSA 10 premium: 80.2× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-professor-oak-88