PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $3.99 |
| PSA 7 | $22.38 |
| PSA 8 | $24 |
| PSA 9 | $54.47 |
| PSA 10 | $596.82 |
| BGS 10 | $776 |
| CGC 10 | $90.48 |
| SGC 10 | $358 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-expansion-pack/pokemon-japanese-expansion-pack-poliwhirl-61