Blastoise GX #SM189 PSA 10: price & population
PSA 10
$385.00
Raw
$18.55
PSA 10 pop
529
Gem rate
28.3%
A PSA 10 Blastoise GX #SM189 from Promo sells for $385.00 — a 1,975% premium over the $18.55 raw price. PSA has graded this card 1,867 times; 529 came back a 10 (28.3% gem rate), and 952 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $50.00. The jump from 9 to 10 is worth $335.00 — 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.
