Ungraded vs Grade 8.0 Adventure Comics #256 (1959): price difference
Adventure Comics #256 (1959) value — Ungraded $52 vs Grade 8.0 $1148. Grade 8.0 sells for 22.08× Ungraded (+2108%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 22.08× (+2108%) the Ungraded price — a $1,096 difference per comic.
Grade 8.0 sells for 5.95× (+495%) the Grade 6.0 price — a $955 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Adventure Comics #256 (1959), the jump from Ungraded to Grade 8.0 is worth $1,096 (22.08×) — 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).