Ungraded vs Grade 8.0 Captain Marvel Adventures #31 (1944): price difference
Captain Marvel Adventures #31 (1944) value — Ungraded $30 vs Grade 8.0 $311. Grade 8.0 sells for 10.37× Ungraded (+937%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 10.37× (+937%) the Ungraded price — a $281 difference per comic.
Grade 6.0 sells for 8.33× (+733%) the Ungraded price — a $220 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Captain Marvel Adventures #31 (1944), the jump from Ungraded to Grade 8.0 is worth $281 (10.37×) — 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).