![Professor Cozmo's Discovery [Reverse Holo] #89 from Pokemon Holon Phantoms](https://images.pokemontcg.io/ex13/89.png)
Professor Cozmo's Discovery [Reverse Holo] #89 PSA 10: price & population
PSA 10
$103.68
Raw
$7.00
PSA 10 pop
5
Gem rate
20.8%
A PSA 10 Professor Cozmo's Discovery [Reverse Holo] #89 from Holon Phantoms sells for $103.68 — a 1,381% premium over the $7.00 raw price. PSA has graded this card 24 times; 5 came back a 10 (20.8% gem rate), and 14 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $28.00. The jump from 9 to 10 is worth $75.68 — 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.
