Professor's Research SWSH152/307 — SWSH Black Star Promos
Promo · SWSH Black Star Promos
Professor's Research SWSH152/307 SWSH Black Star Promos price today: $2.25 raw, $17.50 PSA 9, $66.09 PSA 10. PSA pop 950 (33% gem). Updated Oct 9.
Professor's Research SWSH152/307 price
- Current raw price: $2.25 (as of 2026-10-10)
- Past month: -$0.75 (-25%) from $3.00
- Past 3 months: -$0.27 (-11%) from $2.52
- Past year: -$1.46 (-39%) from $3.71
- 1-year high: $3.84, low: $2.15
- About 288 sales a year (PriceCharting)
Graded prices
| Grade | Price |
|---|---|
| Raw | $2.25 |
| PSA 8 | $12.50 |
| PSA 9 | $17.50 |
| PSA 10 | $66.09 |
| BGS 10 | $86.00 |
| CGC 10 | $24.99 |
PSA 10 premium: 29.4x the raw price.
PSA population
- Total graded: 950
- Gem rate (PSA 10 share): 33%
- Population week: 2026-10-05
| Grade | Graded |
|---|---|
| PSA 4 | 2 |
| PSA 5 | 2 |
| PSA 6 | 3 |
| PSA 7 | 15 |
| PSA 8 | 107 |
| PSA 9 | 499 |
| PSA 10 | 311 |
eBay sales by month
60 matched eBay sales in the last 24 months.
| Month | Graded | Raw | Median graded | Median raw |
|---|---|---|---|---|
| 2026-06 | 0 | 1 | ||
| 2026-07 | 5 | 1 | $42.20 | $2.84 |
| 2026-08 | 0 | 24 | $3.99 | |
| 2026-09 | 1 | 24 | $17.50 | $3.99 |
| 2026-10 | 1 | 3 | $19.83 | $3.49 |