Koga #19 PSA 10: price & population
PSA 10
$550.12
Raw
$31.80
PSA 10 pop
50
Gem rate
4.4%
A PSA 10 Koga #19 from Gym Challenge sells for $550.12 — a 1,630% premium over the $31.80 raw price. PSA has graded this card 1,139 times; 50 came back a 10 (4.4% gem rate), and 312 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $97.00. The jump from 9 to 10 is worth $453.12 — 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.