Ungraded vs Grade 8.0 Action Comics #31 (1940): price difference
Action Comics #31 (1940) value — Ungraded $600 vs Grade 8.0 $2880. Grade 8.0 sells for 4.8× Ungraded (+380%). Prices updated August 2026.
↗ Rising · +21%
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Ungraded vs Grade 8.0
$600→$2880
Grade 8.0 sells for 4.8× (+380%) the Ungraded price — a $2,280 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Action Comics #31 (1940), the jump from Ungraded to Grade 8.0 is worth $2,280 (4.8×) — 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).