Misty's Psyduck [1st Edition] #90 PSA 10: price & population
PSA 10
$672.70
Raw
$34.03
PSA 10 pop
294
Gem rate
30.5%
A PSA 10 Misty's Psyduck [1st Edition] #90 from Gym Challenge sells for $672.70 — a 1,877% premium over the $34.03 raw price. PSA has graded this card 965 times; 294 came back a 10 (30.5% gem rate), and 406 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $103.00. The jump from 9 to 10 is worth $569.70 — 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.