Ungraded vs Grade 8.0 Detective Comics #27 (1939): price difference
Detective Comics #27 (1939) value — Ungraded $572 vs Grade 8.0 $1823113. Grade 8.0 sells for 3,187.26× Ungraded (+318626%). Prices updated September 2026.
Medians of real sold listings per grade, updated September 2026 — how we compute values.
Grade 8.0 sells for 3,187.26× (+318626%) the Ungraded price — a $1,822,541 difference per comic.
Grade 6.0 sells for 2,656.05× (+265505%) the Ungraded price — a $1,518,688 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Detective Comics #27 (1939), the jump from Ungraded to Grade 8.0 is worth $1,822,541 (3,187.26×) — 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).