Graded Market · 35 completed sales
Colress's Experiment graded prices.
As of July 8, 2026, Colress's Experiment (Crown Zenith Galarian Gallery #GG59) in PSA 10 sells for a median of $48.50, based on 35 real eBay completed sales; the raw copy’s reference price is $3.73 — a 13.0× grading premium at the top grade.
PSA · Colress's Experiment
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $48.50 | 21 | 13.0× |
| Mint 9 | $20.00 | 5 | 5.4× |
CGC · Colress's Experiment
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $29.99 | 4 | 8.0× |
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.