Professor's Research #23
Celebrations · 2021-10-08 · Rare Holo · English
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Raw / Ungraded
$0.72
Grade 7
$6.00
Grade 8
$7.50
Grade 9
$11.04
Grade 9.5
$12.00
PSA 10
$129.50
BGS 10
$168.00
CGC 10
$20.27
SGC 10
$10.50
Sales Volume
310
Gem Rate
12.4%
PSA 10 Rate
12.3%
PSA 10 Population
610
Raw to PSA 9
$-29.68
-72.9%
Raw to PSA 10
$88.78
218.0%
PSA / BGS / CGC / SGC
Card Profile
Pricing
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Insights
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Population Report
Graded population snapshot
GemRate Multi-Grader View
Latest snapshot: 2026-04-16
Holofoil
Professor's Research #23
Total grades 1064
PSA
8 230
8.5 1
9 304
10 75
BGS
8 1
8.5 4
9 20
9.5 6
CGC
8 29
8.5 94
9 107
9.5 20
10 45
10P 3
SGC
8 3
8.5 5
9 4
9.5 2
10 3