Prices updated 4/5/2026
Professor's Research — PSA 8
SWSH Black Star Promos · #SWSH152
Set
SWSH Black Star Promos
Series
Sword & Shield
Rarity
Promo
Number
SWSH152
Supertype
Trainer
Artist
Yuu Nishida
Subtypes
Supporter
Prices & Marketplace
PSA 8 · cheapest right now
live eBay asks$32.00
cheapest of 2 PSA 8 listings for Professor's Research
See PSA 8 listings on eBay →Asking prices, not sold prices. Condition is settled by the grade, but always check the listing.
TCGPlayer (NM market)
referenceNormal
low $1.99$2.75
Holofoil
low $1.99$2.75
Buy on eBay
active asks · 4d agoeBayPSA 10
Lowest $99.50
1 active listing
eBayPSA 9
Lowest $27.99· Median $40.00
6 active listings
eBayPSA 8
Lowest $32.00· Median $33.35
2 active listings
eBayCGC 10
Lowest $24.99· Median $60.00
4 active listings
eBayCGC 9.5
Lowest $33.79
1 active listing
eBayCGC 9
Lowest $9.75· Median $15.00
5 active listings
eBayRaw / Ungraded
Lowest $3.09· Median $6.99
112 active listings·12% above market
View all 132 listings on eBay →Recent sales
by gradeReal sold prices — what buyers actually paid, not an estimate.
Sold-price data from Silph Co Analytics. Outliers excluded.
Price History
Not enough data yet
Listings by grade
The cheapest copy listed on eBay at each grade right now — what the slab is worth paying for.
| Grade | Lowest ask | Listed | |
|---|---|---|---|
| PSA 10 | $99.50 | 1 | Listings → |
| PSA 9 | $27.99 | 6 | Listings → |
| PSA 8 & under | $32.00 | 2 | Listings → |
| CGC 9.5+ | $24.99 | 5 | Listings → |
| CGC 9 & under | $9.75 | 5 | Listings → |
| Raw / Ungraded | $3.09 | 112 | Listings → |
These are current asking prices, not sold prices — a grade with one optimistic listing can look far pricier than it trades for. Recent sold comps are below.
