Professor's Research: Professor Willow #78 PSA 10: price & population
PSA 10
$24.50
Raw
$2.25
PSA 10 pop
165
Gem rate
38.6%
A PSA 10 Professor's Research: Professor Willow #78 from Go sells for $24.50 — a 989% premium over the $2.25 raw price. PSA has graded this card 428 times; 165 came back a 10 (38.6% gem rate), and 177 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $14.59. The jump from 9 to 10 is worth $9.91 — 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.
