PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $9.2 |
| PSA 7 | $25 |
| PSA 8 | $31.51 |
| PSA 9 | $62 |
| PSA 10 | $172.5 |
| BGS 10 | $224 |
| CGC 10 | $104 |
| SGC 10 | $104 |
Market context: ungraded price +31.6% over 30 days. +35.7% over 90 days. PSA 10 premium: 18.8× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-thunder-knuckle/pokemon-japanese-thunder-knuckle-metagross-27