PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $326.98 |
| PSA 7 | $318.26 |
| PSA 8 | $470.25 |
| PSA 9 | $806.23 |
| PSA 10 | $5650 |
| BGS 10 | $7345 |
| CGC 10 | $1325 |
| SGC 10 | $3390 |
Market context: PSA 10 premium: 17.3× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-promo/pokemon-japanese-promo-ancient-mew-variant-nintedo-error-card