PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $11.57 |
| PSA 8 | $35 |
| PSA 9 | $76.99 |
| PSA 10 | $402.05 |
| BGS 10 | $523 |
| CGC 10 | $241 |
| SGC 10 | $241 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-topsun/pokemon-japanese-topsun-shellder-blue-back-90