Koffing #275 PSA 10: price & population
PSA 10
$64.56
Raw
$4.81
PSA 10 pop
175
Gem rate
81.8%
A PSA 10 Koffing #275 from Japanese Shiny Star V sells for $64.56 — a 1,242% premium over the $4.81 raw price. PSA has graded this card 214 times; 175 came back a 10 (81.8% gem rate), and 38 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $8.99. The jump from 9 to 10 is worth $55.57 — 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.
