PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $14.2 |
| PSA 7 | $20.5 |
| PSA 8 | $24.3 |
| PSA 9 | $50 |
| PSA 10 | $269.7 |
| BGS 10 | $351 |
| CGC 10 | $66.66 |
| SGC 10 | $162 |
TCGplayer market price: $25.06 (as of 2026-08-29)
Market context: ungraded price -4.6% over 30 days. +33.8% over 90 days. PSA 10 premium: 19.0× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-base-set/pokemon-base-set-grass-energy-1st-edition-99