Brock's Golem #20 PSA 10: price & population
PSA 10
$256.51
Raw
$12.52
PSA 10 pop
26
Gem rate
20.3%
A PSA 10 Brock's Golem #20 from Gym Heroes sells for $256.51 — a 1,949% premium over the $12.52 raw price. PSA has graded this card 128 times; 26 came back a 10 (20.3% gem rate), and 45 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $40.32. The jump from 9 to 10 is worth $216.19 — 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.
