Ungraded vs Grade 8.0 Journey into Mystery #18 (1975): price difference
Journey into Mystery #18 (1975) value — Ungraded $11 vs Grade 8.0 $51. Grade 8.0 sells for 4.64× Ungraded (+364%). Prices updated September 2026.
Medians of real sold listings per grade, updated September 2026 — how we compute values.
Grade 8.0 sells for 4.64× (+364%) the Ungraded price — a $40 difference per comic.
Grade 6.0 sells for 2.64× (+164%) the Ungraded price — a $18 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Journey into Mystery #18 (1975), the jump from Ungraded to Grade 8.0 is worth $40 (4.64×) — 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).