PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $54 |
| PSA 8 | $38 |
| PSA 9 | $75.45 |
| PSA 10 | $274.99 |
| BGS 10 | $357 |
| CGC 10 | $65 |
| SGC 10 | $165 |
Market context: ungraded price +33.2% over 30 days. +31.8% over 90 days. PSA 10 premium: 5.1× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-web/pokemon-japanese-web-diglett-1st-edition-13