PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $2.9 |
| PSA 7 | $13 |
| PSA 8 | $16.37 |
| PSA 9 | $33.96 |
| PSA 10 | $163.37 |
| BGS 10 | $212 |
| CGC 10 | $53 |
| SGC 10 | $98 |
TCGplayer market price: $2.67 (as of 2026-10-20)
Market context: ungraded price -3.0% over 30 days. -3.0% over 90 days. PSA 10 premium: 56.3× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-gym-challenge/pokemon-gym-challenge-brock-s-diglett-1st-edition-67