PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $5.72 |
| PSA 8 | $20 |
| PSA 9 | $45.89 |
| PSA 10 | $196.25 |
| BGS 10 | $255 |
| CGC 10 | $118 |
| SGC 10 | $118 |
Market context: ungraded price +43.7% over 30 days. +68.7% over 90 days. PSA 10 premium: 34.3× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-rulers-of-the-heavens/pokemon-japanese-rulers-of-the-heavens-grumpig-30