Grade Matrix
Graded
PSA 6
-
Grade 7 guide
-
Grade 8 guide
$13
PSA 9
$19
PSA 10
$100
PSA 10: 1 sale, last 45 days · Oct 9, 2026 · checked Oct 27, 2026
PSA 9: Median of 4 PSA 9 sales in the last 90 days, latest 2026-10-01. Grade 9 guide (all graders): $18.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
CGC
CGC 8
-
CGC 9
$10
CGC 10
$26
CGC P10
-
Availability
Availabilityi
9/10G: 12/y
Graded: ~12 sales/yr (low) · Sales per year: ~326 sales/yr · Recent sales: 3 PSA 10 comps · Raw recent sales: 60 · Grade 9 recent sales: 30 · PSA 10 recent sales: 30 · Graded copies: 945 · PSA-10 delta 23.7%
TCGplayer Price History
HolofoilProduct 268709Fetched Oct 20, 3:56 AM
Weekly market
$2.58
week ending Oct 19
Weekly avg sale
$2.60
week ending Oct 19
Units sold (week)
2
week ending Oct 19
Card Value FAQ
How much is Professor's Research (Promo #SWSH152) worth?
GemDelta shows Professor's Research (Promo #SWSH152) at $2.40 market price (TCGplayer market). Its Delta multiple is 41.5x.
How much is a PSA 10 Professor's Research (Promo #SWSH152) worth?
A PSA 10 Professor's Research (Promo #SWSH152) is currently shown at $99.50, the only PSA 10 sale in the last 45 days (Oct 9, 2026).
Is Professor's Research (Promo #SWSH152) worth grading?
GemDelta records a 32.9% gem rate for Professor's Research (Promo #SWSH152), with 311 PSA 10 copies out of 945 total PSA grades and a 41.5x Delta. That describes the grading profile; it is not financial advice.
PSA 10 Recent sales
| Date | Listing | Sale |
|---|---|---|
| Oct 9, 2026 | 2022 POKEMON SWSH BLACK STAR PROMO #152 FULL ART/PROFESSOR'S RESEARCH PSA 10 #152 | $99.50 |
| Jul 24, 2026 | Pokemon Professor's Research Professor Juniper SWSH152 PSA 10 | $74.99 |
| Jul 19, 2026 | Professor’s Research (Juniper) SWSH152 PSA 10 GEM-MINT Pokemon TCG Promo FA Holo #SWSH152 | $57.18 |
| Jun 22, 2026 | 2022 POKEMON SWSH BLACK STAR PROMO #152 FULL ART/PROFESSOR'S RESEARCH PSA 10 #152 | $125.00 |
| Jun 10, 2026 | PSA 10 Professor's Research #266 Pokemon #266 | $60.00 |
| Jun 10, 2026 | Pokemon Professor's Research SWSH152 Sword & Shield Black Star Promo PSA 10 | $93.56 |