PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $5.98 |
| PSA 9 | $56.52 |
| PSA 10 | $90.82 |
| BGS 10 | $118 |
| CGC 10 | $54 |
| SGC 10 | $54 |
TCGplayer market price: $4.99 (as of 2026-08-29)
Market context: ungraded price +0.0% over 30 days. +0.0% over 90 days. PSA 10 premium: 15.2× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-undone-seal/pokemon-japanese-undone-seal-masquerain-1st-edition-12