PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $4.57 |
| PSA 7 | $32.86 |
| PSA 8 | $33.26 |
| PSA 9 | $74.69 |
| PSA 10 | $335.59 |
| BGS 10 | $436 |
| CGC 10 | $99 |
| SGC 10 | $201 |
TCGplayer market price: $6.57 (as of 2026-10-20)
Market context: ungraded price -16.8% over 30 days. -15.4% over 90 days. PSA 10 premium: 73.4× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-imposter-professor-oak-73