PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $6.59 |
| PSA 7 | $19.99 |
| PSA 8 | $28.52 |
| PSA 9 | $41.5 |
| PSA 10 | $134.2 |
| BGS 10 | $174 |
| CGC 10 | $81 |
| SGC 10 | $81 |
Market context: ungraded price +31.8% over 30 days. +139.6% over 90 days. PSA 10 premium: 20.4× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-gastly-1999-2000-50