PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $4.5 |
| PSA 8 | $11 |
| PSA 9 | $14.25 |
| PSA 10 | $41.11 |
| BGS 10 | $53 |
| CGC 10 | $10 |
| SGC 10 | $25 |
Market context: ungraded price -8.0% over 30 days. -21.5% over 90 days. PSA 10 premium: 9.1× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-terastal-festival/pokemon-japanese-terastal-festival-cornerstone-mask-ogerpon-ex-216