![Grookey [Master Ball] #6 from Pokemon Japanese Terastal Festival](https://pokeinvest-japanese-card-images.nyc3.cdn.digitaloceanspaces.com/Terastal_Festival/216_Grookey_6.jpg)
Grookey [Master Ball] #6 PSA 10: price & population
PSA 10
$32.73
Raw
$5.40
PSA 10 pop
148
Gem rate
91.4%
A PSA 10 Grookey [Master Ball] #6 from Japanese Terastal Festival sells for $32.73 — a 506% premium over the $5.40 raw price. PSA has graded this card 162 times; 148 came back a 10 (91.4% gem rate), and 12 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $19.10. The jump from 9 to 10 is worth $13.63 — 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.
