PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $1.69 |
| PSA 8 | $9.5 |
| PSA 9 | $52.37 |
| PSA 10 | $62.26 |
| BGS 10 | $81 |
| CGC 10 | $34 |
| SGC 10 | $37 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-diamond-%26-pearl/pokemon-diamond-%26-pearl-riolu-61