Ungraded vs Grade 8.0 Detective Comics #248 (1957): price difference
Detective Comics #248 (1957) value — Ungraded $33 vs Grade 8.0 $356. Grade 8.0 sells for 10.79× Ungraded (+979%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 10.79× (+979%) the Ungraded price — a $323 difference per comic.
Grade 6.0 sells for 4.91× (+391%) the Ungraded price — a $129 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Detective Comics #248 (1957), the jump from Ungraded to Grade 8.0 is worth $323 (10.79×) — 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).