PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $3.65 |
| PSA 7 | $31.49 |
| PSA 8 | $39.99 |
| PSA 9 | $121.53 |
| PSA 10 | $375.66 |
| BGS 10 | $488 |
| CGC 10 | $225 |
| SGC 10 | $225 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-topsun/pokemon-japanese-topsun-voltorb-blue-back-100