PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $7.23 |
| PSA 7 | $16 |
| PSA 8 | $20.48 |
| PSA 9 | $55 |
| PSA 10 | $267.32 |
| BGS 10 | $348 |
| CGC 10 | $56.27 |
| SGC 10 | $160 |
TCGplayer market price: $6.11 (as of 2026-07-05)
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-gym-heroes/pokemon-gym-heroes-brock-s-onix-1st-edition-69