PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $1.75 |
| PSA 9 | $12.26 |
| PSA 10 | $38.67 |
| BGS 10 | $50 |
| CGC 10 | $23 |
| SGC 10 | $23 |
Market context: PSA 10 premium: 22.1× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-storm-emeralda/pokemon-japanese-storm-emeralda-legendary-marine-trench-71