Professor's Research #24 PSA 10: price & population
PSA 10
$57.50
Raw
$1.48
PSA 10 pop
969
Gem rate
37.2%
A PSA 10 Professor's Research #24 from Celebrations sells for $57.50 — a 3,785% premium over the $1.48 raw price. PSA has graded this card 2,608 times; 969 came back a 10 (37.2% gem rate), and 1,009 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $13.26. The jump from 9 to 10 is worth $44.24 — 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.
