PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $9.03 |
| PSA 9 | $34 |
| PSA 10 | $181.23 |
| BGS 10 | $236 |
| CGC 10 | $109 |
| SGC 10 | $109 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-mysterious-mountains/pokemon-japanese-mysterious-mountains-diglett-1st-edition-48