Ungraded vs Grade 6.0 Detective Comics #40 (1940): price difference
Detective Comics #40 (1940) value — Ungraded $2992 vs Grade 6.0 $36000. Grade 6.0 sells for 12.03× Ungraded (+1103%). Prices updated August 2026.
→ Steady
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Ungraded vs Grade 6.0
$2992→$36000
Grade 6.0 sells for 12.03× (+1103%) the Ungraded price — a $33,008 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Detective Comics #40 (1940), the jump from Ungraded to Grade 6.0 is worth $33,008 (12.03×) — 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).