PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $7.49 |
| PSA 7 | $13 |
| PSA 8 | $15.63 |
| PSA 9 | $125 |
| PSA 10 | $150 |
| BGS 10 | $195 |
| CGC 10 | $149.99 |
| SGC 10 | $90 |
TCGplayer market price: $14.75 (as of 2026-10-20)
Market context: ungraded price +25.0% over 30 days. +50.1% over 90 days. PSA 10 premium: 20.0× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-undone-seal/pokemon-japanese-undone-seal-walrein-1st-edition-32