PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $12.67 |
| PSA 7 | $23 |
| PSA 8 | $29.15 |
| PSA 9 | $41 |
| PSA 10 | $225.43 |
| BGS 10 | $293 |
| CGC 10 | $135 |
| SGC 10 | $135 |
Market context: ungraded price +16.5% over 30 days. +20.7% over 90 days. PSA 10 premium: 17.8× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-diglett-fight-symbol-error-47