Graded Market · 43 completed sales
Professor Sycamore graded prices.
As of July 7, 2026, Professor Sycamore (Steam Siege #114) in PSA 10 sells for a median of $132.25, based on 43 real eBay completed sales; the raw copy’s reference price is $10.59 — a 12.5× grading premium at the top grade.
PSA · Professor Sycamore
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $132.25 | 18 | 12.5× |
| Mint 9 | $29.99 | 16 | 2.8× |
| NM 7 | $14.50 | 5 | 1.4× |
Medians of real eBay completed sales per grade; small sample sizes deserve caution. Prices are dated reference values — cite them with the as-of date above. Attribution: CardIntel (cardintel.io). See the methodology.