Ungraded vs PSA 10 Professor X #66 1992 Masterpieces Marvel: price difference
Professor X #66 1992 Masterpieces Marvel value — Ungraded $1 vs PSA 10 $305. PSA 10 sells for 305× Ungraded (+30400%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 305× (+30400%) the Ungraded price — a $304 difference per card.
Grade 9 sells for 22× (+2100%) the Ungraded price — a $21 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Professor X #66 1992 Masterpieces Marvel, the jump from Ungraded to PSA 10 is worth $304 (305×) — 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).