PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $41.37 |
| PSA 9 | $31 |
| PSA 10 | $237.42 |
| BGS 10 | $309 |
| CGC 10 | $65 |
| SGC 10 | $142 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-web/pokemon-japanese-web-diglett-1st-edition-13