Professor's Research Scarlet & Violet Black Star Promos #221
Sold prices, not asking · Updated 5 July 2026
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Professor's Research is a Promo Pokémon card from Scarlet & Violet Black Star Promos (#221), illustrated by Hideki Ishikawa. Its current blended market value is $39.99 ungraded, with a PSA 10 worth around $60 — a gem-mint grading premium of roughly 2× the raw value. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 5 July 2026.
| Grade | Relative value | Price |
|---|---|---|
| PSA 10 | $60$60–$60 |
Price history · raw near-mint
Recent sold prices
No recent sold listings tracked.
Should you grade it?
after ~$70.59 grading fee → 1.5× the raw value
| Target grade | Est. value | Grading fee | Net vs raw | Multiple |
|---|---|---|---|---|
| PSA 10 | $59.99 | $70.59 | −$51 | 1.5× |
Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-06-28; the paused PSA Value tier is excluded so this isn't overstated. Real outcome depends on the grade achieved; PSA 10 is best-case.
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Where to buy
Market dataCross-market spread, EU price, momentum & community buzz
Card details
Other Professor's Research cards
There are 9 different Professor's Research printings — make sure you're valuing the right one. This is Scarlet & Violet Black Star Promos #221 (Promo).
More from Scarlet & Violet Black Star Promos
Frequently asked questions
How much is Professor's Research (Scarlet & Violet Black Star Promos #221) worth?
As of 5 July 2026, Professor's Research from Scarlet & Violet Black Star Promos is worth approximately $39.99 ungraded (near-mint), and around $60 in PSA 10 gem mint. Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.
What is the PSA 10 price for Professor's Research?
A PSA 10 (gem mint) Professor's Research from Scarlet & Violet Black Star Promos is worth around $60 — roughly 2× the raw ungraded value of $39.99.
Should I grade my Professor's Research?
A PSA 10 sells for about $60 versus $39.99 raw — roughly a 2× uplift. Grading is worth it when that premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10. See the "Should you grade it?" estimate above for net profit per grade.
Is Professor's Research rare?
Professor's Research is a Promo card from Scarlet & Violet Black Star Promos (card #221), illustrated by Hideki Ishikawa. Its current blended market value is $39.99 ungraded.