![Professor Oak's New Theory [Reverse Holo] #83 from Pokemon Call of Legends](https://images.pokemontcg.io/col1/83.png)
Professor Oak's New Theory [Reverse Holo] #83 PSA 10: price & population
PSA 10
$72.00
Raw
$3.34
PSA 10 pop
2
Gem rate
14.3%
A PSA 10 Professor Oak's New Theory [Reverse Holo] #83 from Call of Legends sells for $72.00 — a 2,056% premium over the $3.34 raw price. PSA has graded this card 14 times; 2 came back a 10 (14.3% gem rate), and 8 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $57.46. The jump from 9 to 10 is worth $14.54 — 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.
