PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $21.54 |
| PSA 7 | $36.5 |
| PSA 8 | $50 |
| PSA 9 | $94.5 |
| PSA 10 | $705 |
| BGS 10 | $917 |
| CGC 10 | $85.5 |
| SGC 10 | $423 |
TCGplayer market price: $32.31 (as of 2026-10-20)
Market context: ungraded price -11.4% over 30 days. -14.3% over 90 days. PSA 10 premium: 32.7× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-koffing-1st-edition-51