Ungraded vs Grade 8.0 Journey into Mystery #18 (1954): price difference
Journey into Mystery #18 (1954) value — Ungraded $200 vs Grade 8.0 $1140. Grade 8.0 sells for 5.7× Ungraded (+470%). Prices updated September 2026.
Medians of real sold listings per grade, updated September 2026 — how we compute values.
Grade 8.0 sells for 5.7× (+470%) the Ungraded price — a $940 difference per comic.
Grade 8.0 sells for 4.65× (+365%) the Grade 6.0 price — a $895 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Journey into Mystery #18 (1954), the jump from Ungraded to Grade 8.0 is worth $940 (5.7×) — 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).