![Professor Cozmo's Discovery [Reverse Holo] #89](/api/images/junkpal-products/cards/professor-cozmo-s-discovery-reverse-holo-89-pokemon-holon-phantoms-card/img0/cover.webp)
Ungraded vs PSA 10 Professor Cozmo's Discovery [Reverse Holo] #89: price difference
Professor Cozmo's Discovery [Reverse Holo] #89 value — Ungraded $7 vs PSA 10 $91. PSA 10 sells for 13× Ungraded (+1200%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 13× (+1200%) the Ungraded price — a $84 difference per card.
PSA 10 sells for 3.96× (+296%) the Grade 9 price — a $68 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Professor Cozmo's Discovery [Reverse Holo] #89, the jump from Ungraded to PSA 10 is worth $84 (13×) — if your copy grades at the top, that premium can cover the fee. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).