Koffing #114 PSA 10: price & population
PSA 10
$126.25
Raw
$4.38
PSA 10 pop
50
Gem rate
33.6%
A PSA 10 Koffing #114 from Expedition sells for $126.25 — a 2,782% premium over the $4.38 raw price. PSA has graded this card 149 times; 50 came back a 10 (33.6% gem rate), and 58 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $53.00. The jump from 9 to 10 is worth $73.25 — 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.
