RareAlert IntelligenceCard-level collector intelligence
Sword & Shield
Trainer · Supporter
Illustrated by Yusuke Kozaki
Professor's Research #SWSH178 SWSH Black Star Promos PSA Population
Trainer · Supporter
Illustrated by Yusuke Kozaki
Professor's Research #SWSH178 from SWSH Black Star Promos currently has 20 PSA graded copies, including 3 PSA 10s, for a 15.0% PSA gem rate. Its PSA population has remained unchanged over the last 10 days.
PSA and CGC data as of Oct 27, 2026.
RareAlert may earn a commission from qualifying purchases made through eBay or TCGplayer links.
Graded population
| Grade | PSA | CGC | BGS |
|---|---|---|---|
| Total Graded | 20 | 12 | 0 |
| Pristine / Black Label % | — | 0% | — |
| Gem Rate | 15.0% | 33.3%-3.0% | — |
| Perfect / Black Label | — | 0 | — |
| Pristine | — | 0 | — |
| 10 | 3 | 4 | — |
| 9.5 | — | 0 | — |
| 9 | 10 | 5 | — |
| 8.5 | 0 | 0 | — |
| 8 | 3 | 0 | — |
| 7.5 | 0 | 0 | — |
| 7 | 4 | 1 | — |
CGC total graded is the grader's reported population (12). The grade rows add up to 11.
Show more
| 6.5 | 0 | 0 | — |
| 6 | 0 | 0 | — |
| 5.5 | 0 | 0 | — |
| 5 | 0 | 0 | — |
| 4.5 | 0 | 0 | — |
| 4 | 0 | 0 | — |
| 3.5 | 0 | 0 | — |
| 3 | 0 | 0 | — |
| 2.5 | 0 | 0 | — |
| 2 | 0 | 0 | — |
| 1.5 | 0 | 0 | — |
| 1 | 0 | 0 | — |
| 0 | — | 1 | — |
Market value
No market estimate yet.
