PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $15.99 |
| PSA 7 | $25 |
| PSA 8 | $25.13 |
| PSA 9 | $50 |
| PSA 10 | $114.75 |
| BGS 10 | $149 |
| CGC 10 | $30.43 |
| SGC 10 | $69 |
Market context: ungraded price +9.4% over 30 days. +7.6% over 90 days. PSA 10 premium: 7.2× 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