Grass Energy #99 PSA 10: price & population
PSA 10
$113.09
Raw
$0.60
PSA 10 pop
381
Gem rate
29.7%
A PSA 10 Grass Energy #99 from Base Set sells for $113.09 — a 18,748% premium over the $0.60 raw price. PSA has graded this card 1,284 times; 381 came back a 10 (29.7% gem rate), and 521 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $44.99. The jump from 9 to 10 is worth $68.10 — 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.
