PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $18.08 |
| PSA 7 | $9 |
| PSA 8 | $11.07 |
| PSA 9 | $51.93 |
| PSA 10 | $618.92 |
| BGS 10 | $805 |
| CGC 10 | $371 |
| SGC 10 | $371 |
Market context: ungraded price +51.4% over 30 days. +65.4% over 90 days. PSA 10 premium: 34.2× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-undone-seal/pokemon-japanese-undone-seal-machamp-51