Ungraded vs Grade 8.0 Adventure Comics #218 (1955): price difference
Adventure Comics #218 (1955) value — Ungraded $80 vs Grade 8.0 $630. Grade 8.0 sells for 7.88× Ungraded (+688%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 7.88× (+688%) the Ungraded price — a $550 difference per comic.
Grade 6.0 sells for 3.35× (+235%) the Ungraded price — a $188 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Adventure Comics #218 (1955), the jump from Ungraded to Grade 8.0 is worth $550 (7.88×) — 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).