PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $15.81 |
| PSA 7 | $25 |
| PSA 8 | $27 |
| PSA 9 | $48 |
| PSA 10 | $147.28 |
| BGS 10 | $191 |
| CGC 10 | $30.43 |
| SGC 10 | $88 |
Market context: ungraded price -1.1% over 30 days. +8.1% over 90 days. PSA 10 premium: 9.3× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-vending/pokemon-japanese-vending-horsea-of-the-seafoam-islands-series-iii-4