Grade Matrix
PSA
PSA 6
-
PSA 7
$6
PSA 8
-
PSA 9
$14
PSA 10
$70
PSA 10: PriceCharting; refreshed Sep 10, 2026
CGC
CGC 8
-
CGC 9
-
CGC 10
$7
CGC P10
-
Availability
Availabilityi
5/10G: —
Graded: insufficient data · Sales per year: ~22 sales/yr · Graded copies: 16
TCGplayer Price History
HolofoilProduct 263867Fetched Sep 2, 3:58 AM
TCGplayer market
$0.18
Latest avg sale
$0.25
Units sold
385
Card Value FAQ
How much is Professor's Research (Brilliant Stars #147) worth?
GemDelta shows Professor's Research (Brilliant Stars #147) at $0.18 market price (TCGplayer market). Its Delta multiple is 52.1x.
How much is a PSA 10 Professor's Research (Brilliant Stars #147) worth?
A PSA 10 Professor's Research (Brilliant Stars #147) is currently shown at $69.79. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
Is Professor's Research (Brilliant Stars #147) worth grading?
GemDelta records a 6.25% gem rate for Professor's Research (Brilliant Stars #147), with 1 PSA 10 copy out of 16 total PSA grades and a 52.1x Delta. That describes the grading profile; it is not financial advice.