PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $4.99 |
| PSA 8 | $19.99 |
| PSA 9 | $33.75 |
| PSA 10 | $430.05 |
| BGS 10 | $559 |
| CGC 10 | $258 |
| SGC 10 | $258 |
Market context: ungraded price +1.8% over 30 days. +14.2% over 90 days. PSA 10 premium: 86.2× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-ex-battle-boost/pokemon-japanese-ex-battle-boost-black-kyurem-ex-84