Grass Energy #129 PSA 10: price & population
PSA 10
$56.00
Raw
$0.70
PSA 10 pop
4
Gem rate
36.4%
A PSA 10 Grass Energy #129 from Gym Challenge sells for $56.00 — a 7,900% premium over the $0.70 raw price. PSA has graded this card 11 times; 4 came back a 10 (36.4% gem rate), and 6 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $46.90. The jump from 9 to 10 is worth $9.10 — 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.
