Professor's Research #150 PSA 10: price & population
PSA 10
$38.50
Raw
$2.23
PSA 10 pop
170
Gem rate
52.3%
A PSA 10 Professor's Research #150 from Crown Zenith sells for $38.50 — a 1,626% premium over the $2.23 raw price. PSA has graded this card 325 times; 170 came back a 10 (52.3% gem rate), and 119 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $23.43. The jump from 9 to 10 is worth $15.07 — 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.
