Tapu Koko #SM31 PSA 10: price & population
PSA 10
$68.76
Raw
$0.71
PSA 10 pop
12
Gem rate
18.5%
A PSA 10 Tapu Koko #SM31 from Promo sells for $68.76 — a 9,585% premium over the $0.71 raw price. PSA has graded this card 65 times; 12 came back a 10 (18.5% gem rate), and 30 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $15.98. The jump from 9 to 10 is worth $52.78 — 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.
