PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $2.06 |
| PSA 9 | $16.69 |
| PSA 10 | $41.56 |
| BGS 10 | $54 |
| CGC 10 | $25 |
| SGC 10 | $25 |
Market context: ungraded price -10.0% over 30 days. -7.6% over 90 days. PSA 10 premium: 20.2× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-world-championships-2017/pokemon-world-championships-2017-decidueye-gx-12