Ungraded vs Grade 6.0 Detective Comics #23 (1939): price difference
Detective Comics #23 (1939) value — Ungraded $1503 vs Grade 6.0 $3734. Grade 6.0 sells for 2.48× Ungraded (+148%). Prices updated August 2026.
↗ Rising · +161%
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Ungraded vs Grade 6.0
$1503→$3734
Grade 6.0 sells for 2.48× (+148%) the Ungraded price — a $2,231 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Detective Comics #23 (1939), the jump from Ungraded to Grade 6.0 is worth $2,231 (2.48×) — 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).