![Professor's Research: Professor Oak [Poke Ball] #122 from Pokemon Prismatic Evolutions](https://images.pokemontcg.io/sv8pt5/122.png)
Professor's Research: Professor Oak [Poke Ball] #122 PSA 10: price & population
PSA 10
$23.00
Raw
$0.35
PSA 10 pop
4
Gem rate
9.3%
A PSA 10 Professor's Research: Professor Oak [Poke Ball] #122 from Prismatic Evolutions sells for $23.00 — a 6,471% premium over the $0.35 raw price. PSA has graded this card 43 times; 4 came back a 10 (9.3% gem rate), and 22 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $10.53. The jump from 9 to 10 is worth $12.47 — 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.
