PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $6.05 |
| PSA 7 | $19.99 |
| PSA 8 | $19.99 |
| PSA 9 | $32 |
| PSA 10 | $237.79 |
| BGS 10 | $309 |
| CGC 10 | $100 |
| SGC 10 | $143 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-topsun/pokemon-japanese-topsun-koffing-green-back-109