Mega Blastoise EX #30 PSA 10: price & population
PSA 10
$370.70
Raw
$20.48
PSA 10 pop
278
Gem rate
29.3%
A PSA 10 Mega Blastoise EX #30 from XY sells for $370.70 — a 1,710% premium over the $20.48 raw price. PSA has graded this card 950 times; 278 came back a 10 (29.3% gem rate), and 260 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $44.02. The jump from 9 to 10 is worth $326.68 — 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.
