PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $7.97 |
| PSA 9 | $48.74 |
| PSA 10 | $215.7 |
| BGS 10 | $280 |
| CGC 10 | $129 |
| SGC 10 | $129 |
Market context: ungraded price +7.6% over 30 days. +59.7% over 90 days. PSA 10 premium: 27.1× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-porygon-1999-2000-39