![Seismitoad [Master Ball] #21 from Pokemon Black Bolt](https://images.pokemontcg.io/zsv10pt5/21.png)
Seismitoad [Master Ball] #21 PSA 10: price & population
PSA 10
$138.50
Raw
$12.50
PSA 10 pop
21
Gem rate
52.5%
A PSA 10 Seismitoad [Master Ball] #21 from Black Bolt sells for $138.50 — a 1,008% premium over the $12.50 raw price. PSA has graded this card 40 times; 21 came back a 10 (52.5% gem rate), and 15 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $13.00. The jump from 9 to 10 is worth $125.50 — 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.
