Ungraded vs Grade 8.0 Adventure Comics #239 (1957): price difference
Adventure Comics #239 (1957) value — Ungraded $51 vs Grade 8.0 $732. Grade 8.0 sells for 14.35× Ungraded (+1335%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 14.35× (+1335%) the Ungraded price — a $681 difference per comic.
Grade 8.0 sells for 3.81× (+281%) the Grade 6.0 price — a $540 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Adventure Comics #239 (1957), the jump from Ungraded to Grade 8.0 is worth $681 (14.35×) — 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).