PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $41 |
| PSA 7 | $9.99 |
| PSA 8 | $37.46 |
| PSA 9 | $68.62 |
| PSA 10 | $290.25 |
| BGS 10 | $377 |
| CGC 10 | $177.34 |
| SGC 10 | $174 |
Market context: ungraded price +49.4% over 30 days. +60.5% over 90 days. PSA 10 premium: 7.1× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-promo/pokemon-japanese-promo-diglett-50