PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $3.37 |
| PSA 7 | $9.5 |
| PSA 8 | $18 |
| PSA 9 | $20 |
| PSA 10 | $250 |
| BGS 10 | $325 |
| CGC 10 | $60.99 |
| SGC 10 | $150 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-expansion-pack/pokemon-japanese-expansion-pack-diglett-50