Ungraded vs Grade 8.0 Mad #31 (1957): price difference
Mad #31 (1957) value — Ungraded $45 vs Grade 8.0 $578. Grade 8.0 sells for 12.84× Ungraded (+1184%). Prices updated September 2026.
Medians of real sold listings per grade, updated September 2026 — how we compute values.
Grade 8.0 sells for 12.84× (+1184%) the Ungraded price — a $533 difference per comic.
Grade 6.0 sells for 5.31× (+431%) the Ungraded price — a $194 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Mad #31 (1957), the jump from Ungraded to Grade 8.0 is worth $533 (12.84×) — 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).