![Professor Cozmo's Discovery [Reverse Holo] #90 from Pokemon Deoxys](https://images.pokemontcg.io/ex8/90.png)
Professor Cozmo's Discovery [Reverse Holo] #90 PSA 10: price & population
PSA 10
$143.65
Raw
$7.60
PSA 10 pop
3
Gem rate
6.8%
A PSA 10 Professor Cozmo's Discovery [Reverse Holo] #90 from Deoxys sells for $143.65 — a 1,790% premium over the $7.60 raw price. PSA has graded this card 44 times; 3 came back a 10 (6.8% gem rate), and 29 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $39.57. The jump from 9 to 10 is worth $104.08 — 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.
