![Slowpoke [Master Ball] #18 from Pokemon Prismatic Evolutions](https://images.pokemontcg.io/sv8pt5/18.png)
Slowpoke [Master Ball] #18 PSA 10: price & population
PSA 10
$148.75
Raw
$7.90
PSA 10 pop
250
Gem rate
32.8%
A PSA 10 Slowpoke [Master Ball] #18 from Prismatic Evolutions sells for $148.75 — a 1,783% premium over the $7.90 raw price. PSA has graded this card 762 times; 250 came back a 10 (32.8% gem rate), and 355 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $23.50. The jump from 9 to 10 is worth $125.25 — 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.
