Koffing #50 PSA 10: price & population
PSA 10
$50.00
Raw
$0.96
PSA 10 pop
10
Gem rate
14.9%
A PSA 10 Koffing #50 from Evolutions sells for $50.00 — a 5,108% premium over the $0.96 raw price. PSA has graded this card 67 times; 10 came back a 10 (14.9% gem rate), and 24 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $14.00. The jump from 9 to 10 is worth $36.00 — 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.
