PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $1.14 |
| PSA 7 | $15.72 |
| PSA 8 | $19.7 |
| PSA 9 | $29.49 |
| PSA 10 | $164.83 |
| BGS 10 | $214 |
| CGC 10 | $43 |
| SGC 10 | $10.5 |
TCGplayer market price: $0.84 (as of 2026-07-05)
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-gastly-50