![Blastoise [1st Edition] #108 from Pokemon Japanese Expedition Expansion Pack](https://pokeinvest-japanese-card-images.nyc3.cdn.digitaloceanspaces.com/Expedition_Expansion_Pack/033_Blastoise_108.jpg)
Blastoise [1st Edition] #108 PSA 10: price & population
PSA 10
$2944.52
Raw
$255.80
PSA 10 pop
725
Gem rate
48.5%
A PSA 10 Blastoise [1st Edition] #108 from Japanese Expedition Expansion Pack sells for $2944.52 — a 1,051% premium over the $255.80 raw price. PSA has graded this card 1,495 times; 725 came back a 10 (48.5% gem rate), and 427 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $906.25. The jump from 9 to 10 is worth $2038.27 — that spread, times your real odds of the 10, is what decides whether grading pays.
The September 2026 Grade Report ranks the 30 most profitable cards to grade right now, by expected profit after every fee. Same math as this page, run across the whole market. $19, one time, instant.
See the top 30 →Prices from real completed sales, updated daily. Population data from PSA's public population report.
