![Grass Energy [1st Edition] #99 from Pokemon Base Set](https://images.pokemontcg.io/base1/99.png)
Grass Energy [1st Edition] #99 PSA 10: price & population
PSA 10
$279.50
Raw
$14.61
PSA 10 pop
542
Gem rate
26.0%
A PSA 10 Grass Energy [1st Edition] #99 from Base Set sells for $279.50 — a 1,813% premium over the $14.61 raw price. PSA has graded this card 2,084 times; 542 came back a 10 (26.0% gem rate), and 877 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $46.48. The jump from 9 to 10 is worth $233.02 — that spread, times your real odds of the 10, is what decides whether grading pays.
Prices from real completed sales, updated daily. Population data from PSA's public population report.
