Ungraded vs Grade 6.0 Detective Comics #21 (1938): price difference
Detective Comics #21 (1938) value — Ungraded $1955 vs Grade 6.0 $8963. Grade 6.0 sells for 4.58× Ungraded (+358%). Prices updated August 2026.
→ Steady
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Ungraded vs Grade 6.0
$1955→$8963
Grade 6.0 sells for 4.58× (+358%) the Ungraded price — a $7,008 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Detective Comics #21 (1938), the jump from Ungraded to Grade 6.0 is worth $7,008 (4.58×) — 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).