Porygon [Series 1] #137 PSA 10: price & population
PSA 10
$621.35
Raw
$29.86
PSA 10 pop
130
Gem rate
26.3%
A PSA 10 Porygon [Series 1] #137 from Japanese Vending sells for $621.35 — a 1,981% premium over the $29.86 raw price. PSA has graded this card 495 times; 130 came back a 10 (26.3% gem rate), and 255 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $174.29. The jump from 9 to 10 is worth $447.06 — 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.