Ungraded vs Grade 8.0 Journey into Mystery #100 (1964): price difference
Journey into Mystery #100 (1964) value — Ungraded $46 vs Grade 8.0 $298. Grade 8.0 sells for 6.48× Ungraded (+548%). Prices updated September 2026.
Medians of real sold listings per grade, updated September 2026 — how we compute values.
Grade 8.0 sells for 6.48× (+548%) the Ungraded price — a $252 difference per comic.
Grade 6.0 sells for 2.72× (+172%) the Ungraded price — a $79 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Journey into Mystery #100 (1964), the jump from Ungraded to Grade 8.0 is worth $252 (6.48×) — 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).