![Professor's Research [Reverse Holo] #178 from Pokemon Sword & Shield](https://images.pokemontcg.io/swsh1/178.png)
Professor's Research [Reverse Holo] #178 PSA 10: price & population
PSA 10
$13.50
Raw
$0.33
PSA 10 pop
5
Gem rate
21.7%
A PSA 10 Professor's Research [Reverse Holo] #178 from Sword & Shield sells for $13.50 — a 3,991% premium over the $0.33 raw price. PSA has graded this card 23 times; 5 came back a 10 (21.7% gem rate), and 13 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $10.86. The jump from 9 to 10 is worth $2.64 — 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.
