Professor's Research #24 PSA 10: price & population
PSA 10
$61.19
Raw
$2.12
PSA 10 pop
989
Gem rate
37.1%
A PSA 10 Professor's Research #24 from Celebrations sells for $61.19 — a 2,786% premium over the $2.12 raw price. PSA has graded this card 2,668 times; 989 came back a 10 (37.1% gem rate), and 1,031 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $19.99. The jump from 9 to 10 is worth $41.20 — 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.
