![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
$0.36
PSA 10 pop
5
Gem rate
10.6%
A PSA 10 Professor's Research: Professor Oak [Poke Ball] #122 from Prismatic Evolutions sells for $23.00 — a 6,289% premium over the $0.36 raw price. PSA has graded this card 47 times; 5 came back a 10 (10.6% gem rate), and 23 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $10.56. The jump from 9 to 10 is worth $12.44 — 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.
