PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $5.99 |
| PSA 9 | $67.07 |
| PSA 10 | $214.76 |
| BGS 10 | $279 |
| CGC 10 | $129 |
| SGC 10 | $129 |
TCGplayer market price: $3 (as of 2026-10-20)
Market context: ungraded price -7.7% over 30 days. +50.9% over 90 days. PSA 10 premium: 35.9× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-undone-seal/pokemon-japanese-undone-seal-castform-1st-edition-66