PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $700 |
| PSA 8 | $611.01 |
| PSA 9 | $672 |
| PSA 10 | $1662.5 |
| BGS 10 | $2161 |
| CGC 10 | $870 |
| SGC 10 | $998 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-promo/pokemon-promo-tropical-tidal-wave-HGSS18