Professor Cozmo's Discovery #89 PSA 10 Price
$71.76
PSA 10 price history
Every grade, priced
| Grade | Market value | PSA population |
|---|---|---|
| PSA 10 (Gem Mint) | $71.76 | 4 |
| Grade 9.5 | $22.00 | — |
| PSA 9 (Mint) | $20.03 | 1 |
| BGS 10 | $93.00 | — |
| CGC 10 | $29.00 | — |
| Raw (ungraded) | $0.53 | — |
PSA has graded 8 copies of Professor Cozmo's Discovery #89 in total — 50% came back Gem Mint. Full cross-company population lives on the card page.
Thinking of grading your copy?
The math is on the card page: live grading expected value from this card's real gem rate and PSA prices, minus fees. And before you submit anything, the grading guide covers the self-checks that separate 10 candidates from expensive 9s.
Professor Cozmo's Discovery PSA 10 FAQ
How much is Professor Cozmo's Discovery worth in PSA 10?
Professor Cozmo's Discovery #89 from Holon Phantoms is currently worth $71.76 in PSA 10 Gem Mint, based on graded sales data updated weekly. A raw copy trades around $0.53 — the PSA 10 carries a 135.4x premium.
How many PSA 10 copies of Professor Cozmo's Discovery exist?
PSA has graded 8 copies, and 4 earned the Gem Mint 10 label — a 50% gem rate. Population grows over time as new copies are submitted.
Is Professor Cozmo's Discovery worth grading?
Run the math, not the hope: grading costs roughly $20-25 per card, so a submission pays when the PSA 10 price times your realistic gem chance beats the raw price plus fees. This card gems at about 50%. The live grading expected value is computed on the main card page.
PSA 10 vs PSA 9 — how big is the difference for Professor Cozmo's Discovery?
A PSA 10 is worth $71.76 against $20.03 for a PSA 9 — a 3.6x gap. That gap is why centering and surface checks before submitting matter more than anything else.