PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $3.76 |
| PSA 9 | $4.89 |
| PSA 10 | $199.95 |
| BGS 10 | $260 |
| CGC 10 | $120 |
| SGC 10 | $120 |
TCGplayer market price: $7 (as of 2026-08-29)
Market context: ungraded price +45.7% over 30 days. +50.4% over 90 days. PSA 10 premium: 53.2× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-undone-seal/pokemon-japanese-undone-seal-gulpin-1st-edition-13