PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $16.83 |
| PSA 8 | $49.99 |
| PSA 9 | $80 |
| PSA 10 | $730.77 |
| BGS 10 | $950 |
| CGC 10 | $438 |
| SGC 10 | $438 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-topsun/pokemon-japanese-topsun-diglett-blue-back-50