PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $33.6 |
| PSA 7 | $35 |
| PSA 9 | $240 |
| PSA 10 | $489.33 |
| BGS 10 | $636 |
| CGC 10 | $294 |
| SGC 10 | $294 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-undone-seal/pokemon-japanese-undone-seal-ninetales-1st-edition-17