PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $3.05 |
| PSA 7 | $14.5 |
| PSA 8 | $15.66 |
| PSA 9 | $33.16 |
| PSA 10 | $137.95 |
| BGS 10 | $179 |
| CGC 10 | $42.25 |
| SGC 10 | $83 |
TCGplayer market price: $2.37 (as of 2026-07-05)
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-gym-challenge/pokemon-gym-challenge-brock-s-diglett-1st-edition-67