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Professor's Research

Holo

Sword & Shield #178 / ENView full set

Holo Rare

Key stats

Market pricei

$0.22

TCGplayer market

PSA 10i

$27.53

PriceCharting; refreshed Sep 10, 2026

Deltai

—

Gem ratei

35.8%

19 of 53 PSA grades

Availabilityi

5/10G: —

PSA population by grade

PSA 6

3

PSA 7

1

PSA 8

3

PSA 9

27

PSA 10

19

Updated Jul 13, 2026, 1:47 AM

TCGplayer PriceCharting eBay Raw eBay PSA 10 eBay TAG

As an eBay Partner and TCGplayer affiliate, GemDelta may be compensated if you buy through links on this page.

Grade Matrix

PSA

PSA 6

-

PSA 7

$8

PSA 8

-

PSA 9

$10

PSA 10

$28

PSA 10: PriceCharting; refreshed Sep 10, 2026

CGC

CGC 8

-

CGC 9

-

CGC 10

$17

CGC P10

-

Availability

Availabilityi

5/10G: —

Graded: insufficient data · Sales per year: ~55 sales/yr · Graded copies: 53

TCGplayer Price History

HolofoilProduct 208508Fetched Sep 5, 3:53 AM

TCGplayer market

$0.27

Latest avg sale

$0.25

Units sold

280

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 $27.53. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.