Ungraded vs Grade 8.0 Detective Comics #258 (1958): price difference
Detective Comics #258 (1958) value — Ungraded $64 vs Grade 8.0 $807. Grade 8.0 sells for 12.61× Ungraded (+1161%). Prices updated September 2026.
Medians of real sold listings per grade, updated September 2026 — how we compute values.
Grade 8.0 sells for 12.61× (+1161%) the Ungraded price — a $743 difference per comic.
Grade 8.0 sells for 4.18× (+318%) the Grade 6.0 price — a $614 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Detective Comics #258 (1958), the jump from Ungraded to Grade 8.0 is worth $743 (12.61×) — 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).