Ungraded vs Grade 8.0 Detective Comics #284 (1960): price difference
Detective Comics #284 (1960) value — Ungraded $38 vs Grade 8.0 $603. Grade 8.0 sells for 15.87× Ungraded (+1487%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 15.87× (+1487%) the Ungraded price — a $565 difference per comic.
Grade 8.0 sells for 4.43× (+343%) the Grade 6.0 price — a $467 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Detective Comics #284 (1960), the jump from Ungraded to Grade 8.0 is worth $565 (15.87×) — 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).