Grade Matrix
PSA
PSA 6
-
PSA 7
$7
PSA 8
$11
PSA 9
$17
PSA 10
$55
PSA 10: 45-day PSA 10 sold-comp median
CGC
CGC 8
-
CGC 9
$11
CGC 10
$25
CGC P10
-
Availability
Availabilityi
8/10G: —
Graded: insufficient data · Sales per year: ~317 sales/yr · Recent sales: 10 PSA 10 comps · Graded copies: 853 · PSA-10 delta 17.8%
TCGplayer Price History
HolofoilProduct 478087Fetched Sep 8, 4:01 AM
TCGplayer market
$3.48
Latest avg sale
$3.15
Units sold
1,920
Card Value FAQ
How much is Colress's Experiment (Crown Zenith #GG59) worth?
GemDelta shows Colress's Experiment (Crown Zenith #GG59) at $3.41 market price (TCGplayer market). Its Delta multiple is 14.9x.
How much is a PSA 10 Colress's Experiment (Crown Zenith #GG59) worth?
A PSA 10 Colress's Experiment (Crown Zenith #GG59) is currently shown at $54.99. GemDelta labels this as a 45-day PSA 10 sold-comp median.
Is Colress's Experiment (Crown Zenith #GG59) worth grading?
GemDelta records a 54.6% gem rate for Colress's Experiment (Crown Zenith #GG59), with 466 PSA 10 copies out of 853 total PSA grades and a 14.9x Delta. That describes the grading profile; it is not financial advice.
PSA 10 Recent sales
| Date | Sale |
|---|---|
| Jul 29, 2026 | $54.99 |
| Jul 6, 2026 | $42.00 |
| Jun 28, 2026 | $50.00 |
| Jun 8, 2026 | $32.00 |
| Jun 1, 2026 | $50.00 |
| May 26, 2026 | $40.00 |
| May 25, 2026 | $28.90 |
| May 25, 2026 | $52.69 |
| May 24, 2026 | $42.00 |
| May 15, 2026 | $42.88 |
| Apr 25, 2026 | $45.99 |
| Apr 25, 2026 | $49.00 |
Showing the latest 12 of 16 stored PSA 10 comps.