![Seaking [Master Ball] #21 from Pokemon Prismatic Evolutions](https://images.pokemontcg.io/sv8pt5/21.png)
Seaking [Master Ball] #21 PSA 10: price & population
PSA 10
$102.26
Raw
$3.18
PSA 10 pop
63
Gem rate
28.6%
A PSA 10 Seaking [Master Ball] #21 from Prismatic Evolutions sells for $102.26 — a 3,116% premium over the $3.18 raw price. PSA has graded this card 220 times; 63 came back a 10 (28.6% gem rate), and 125 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $15.60. The jump from 9 to 10 is worth $86.66 — 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.
