Prices updated 4/5/2026
Professor's Research — PSA 9
Crown Zenith · #150
Set
Crown Zenith
Series
Sword & Shield
Rarity
Rare Ultra
Number
150
Supertype
Trainer
Artist
Sanosuke Sakuma
Subtypes
Supporter
Prices & Marketplace
PSA 9 · cheapest right now
live eBay asks$18.99
cheapest of 3 PSA 9 listings for Professor's Research
See PSA 9 listings on eBay →Asking prices, not sold prices. Condition is settled by the grade, but always check the listing.
TCGPlayer (NM market)
referenceNormal
low $1.38$2.21
Holofoil
low $1.38$2.21
Buy on eBay
active asks · 4d agoeBayPSA 9
Lowest $18.99· Median $19.00
3 active listings
eBayCGC 10
Lowest $14.95
1 active listing
eBayRaw / Ungraded
Lowest $1.49· Median $3.18
196 active listings·33% below market
View all 444 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 9 | $18.99 | 3 | Listings → |
| CGC 9.5+ | $14.95 | 1 | Listings → |
| Raw / Ungraded | $1.49 | 196 | 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.
