Koffing #243 PSA 10: price & population
PSA 10
$318.40
Raw
$35.00
PSA 10 pop
648
Gem rate
29.2%
A PSA 10 Koffing #243 from Cosmic Eclipse sells for $318.40 — a 810% premium over the $35.00 raw price. PSA has graded this card 2,217 times; 648 came back a 10 (29.2% gem rate), and 1,129 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $46.40. The jump from 9 to 10 is worth $272.00 — 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.
