Grass Energy #99 PSA 10: price & population
PSA 10
$31.00
Raw
$15.49
PSA 10 pop
50
Gem rate
53.2%
A PSA 10 Grass Energy #99 from Japanese Clay Burst sells for $31.00 — a 100% premium over the $15.49 raw price. PSA has graded this card 94 times; 50 came back a 10 (53.2% gem rate), and 42 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $13.01. The jump from 9 to 10 is worth $17.99 — 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.
