Ungraded vs Grade 8.0 Detective Comics #171 (1951): price difference
Detective Comics #171 (1951) value — Ungraded $123 vs Grade 8.0 $2705. Grade 8.0 sells for 21.99× Ungraded (+2099%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 21.99× (+2099%) the Ungraded price — a $2,582 difference per comic.
Grade 6.0 sells for 6.65× (+565%) the Ungraded price — a $695 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Detective Comics #171 (1951), the jump from Ungraded to Grade 8.0 is worth $2,582 (21.99×) — 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).