![Grass Energy [1st Edition] #129 from Pokemon Gym Challenge](https://images.pokemontcg.io/gym2/129.png)
Grass Energy [1st Edition] #129 PSA 10: price & population
PSA 10
$177.50
Raw
$3.28
PSA 10 pop
42
Gem rate
25.6%
A PSA 10 Grass Energy [1st Edition] #129 from Gym Challenge sells for $177.50 — a 5,312% premium over the $3.28 raw price. PSA has graded this card 164 times; 42 came back a 10 (25.6% gem rate), and 74 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $12.27. The jump from 9 to 10 is worth $165.23 — 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.
