PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $10 |
| PSA 7 | $12.36 |
| PSA 8 | $20.65 |
| PSA 9 | $34.17 |
| PSA 10 | $495 |
| BGS 10 | $644 |
| CGC 10 | $43.78 |
| SGC 10 | $297 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-promo/pokemon-promo-psyduck-7