Professor's Research
SetSWSH Black Star Promos
Year2019
RarityPromo
Number#SWSH152
Ungraded
$4.00+$0.49
142 sales · last Jul 9, 2026
CGC 9
$9.75
6 sales · last Jul 5, 2026
PSA 9
$8.00
1 sales · last May 20, 2026
PSA 10
$93.50
1 sales · last Jun 10, 2026
CGC Pristine 10
$79.99
1 sales · last May 2, 2026
CGC 10
$14.99
1 sales · last Apr 10, 2026
Professor's Research price guide
Professor's Research is a collectible Pokémon card from the SWSH Black Star Promos expansion (2019). Setlot tracks 152 recorded sales for this card across 6 grade tiers, 143 of them in the last 90 days. PSA 10 copies have a 90-day median of $93.50. Ungraded copies currently trade around $4.00. The top grade commands 23× the ungraded price — grading meaningfully changes what this card is worth. The highest sale on record is $93.50 (PSA 10, Jun 10, 2026). 2 listings are live right now with asks from $4.36.
Price history
Grading premium
Median graded price vs. the ungraded copy ($4.00) — a rough read on whether grading pays off.
CGC 9
2.4×
$9.75
PSA 9
2.0×
$8.00
PSA 10
23×
$93.50
CGC Pristine 10
20×
$79.99
CGC 10
3.7×
$14.99
Live listings
Search on eBay ↗Lowest asks per grade. Older listings may have ended — “seen” is when we last confirmed each one.
| Grade | Listing | Marketplace | Seen | Price |
|---|---|---|---|---|
| Ungraded | Professor's Research - Holo SWSHP SWSH Black Star Promos SWSH152/307 NM Pokemon thecard-counter | eBay | 1mo ago | $4.36↗ |
| Professor's Research #SWSH152 (SWSH: Promo Cards)-Pokémon-Black Star Promo-M/NM ezcollectioncorner | eBay | 1mo ago |
Recent sales by grade· last 90 days
| Grade | Sold | Median | Range |
|---|---|---|---|
| Ungraded | 134 | $4.00 | $0.85 – $20.04 |
| CGC 9 | 6 | $9.75 | $6.00 – $13.00 |
| PSA 9 | 1 | $8.00 | $8.00 |
| PSA 10 | 1 | $93.50 | $93.50 |
| CGC Pristine 10 | 1 | $79.99 | $79.99 |
Recent sales
| Date | Grade | Title | Sold on | Price |
|---|---|---|---|---|
| Jul 9, 2026 | Ungraded | Professor's Research (Juniper) Full Art - Near Mint SWSH152 Pokemon Promo *LQQK*↗ | eBay | $4.00 |
| Jul 9, 2026 | Ungraded | Professor's Research SWSH152 SWSH: Sword & Shield Promo Cards Holo↗ | eBay | $4.99 |
| Jul 9, 2026 | Ungraded | Professor's Research [Professor Juniper] SWSH152 SWSH: Sword & Shield Promo↗ | eBay | $4.50 |
| Jul 8, 2026 | Ungraded | Pokémon Professor's Research (Professor Juniper) SWSH152 Promo Full Art Holo↗ |
