Grade Matrix
Graded
PSA 6
-
Grade 7 guide
$8
Grade 8 guide
-
Grade 9 guide
$10
PSA 10
$34
PSA 10: Last PSA 10 sale $33.83 on Apr 27, 2026 · checked Oct 25, 2026
Grade 9: No recent PSA 9 sales. PriceCharting Grade 9 guide, mixing PSA, CGC, BGS, SGC and TAG 9s.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
CGC
CGC 8
-
CGC 9
-
CGC 10
$17
CGC P10
-
Availability
Availabilityi
6/10G: 4/y
Graded: ~4 sales/yr (extremely low) · Sales per year: ~55 sales/yr · Raw recent sales: 48 · Grade 9 recent sales: 1 · PSA 10 recent sales: 3 · Graded copies: 53
TCGplayer Price History
HolofoilProduct 208508Fetched Oct 20, 3:52 AM
Weekly market
$0.17
week ending Oct 19
Weekly avg sale
$0.00
week ending Oct 19
Units sold (week)
0
week ending Oct 19
Card Value FAQ
How much is a PSA 10 Professor's Research (Sword & Shield #178) worth?
A PSA 10 Professor's Research (Sword & Shield #178) is currently shown at $33.83. GemDelta labels this as the latest stored PSA 10 sale, which is older than the sales window; no sales were found inside that window.
PSA 10 past sales
| Date | Listing | Sale |
|---|---|---|
| Apr 27, 2026 | Pokemon - 2020 Sword & Shield Professor's Research Holo #178 - PSA 10 - GEM MINT 178/202 | $33.83 |
| Jan 27, 2026 | 2020 POKEMON SWORD & SHIELD #178 PROFESSOR'S RESEARCH-HOLO PSA 10 #178 | $25.00 |
| Jan 26, 2026 | 2020 POKEMON SWORD & SHIELD #178 PROFESSOR'S RESEARCH-HOLO PSA 10 #178 | $17.49 |