PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $27.47 |
| PSA 7 | $30 |
| PSA 8 | $36.72 |
| PSA 9 | $146 |
| PSA 10 | $378.86 |
| BGS 10 | $493 |
| CGC 10 | $175 |
| SGC 10 | $227 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-promo/pokemon-japanese-promo-dialga-dp-p-107