Ungraded vs Grade 8.0 Strange Adventures #18 (1952): price difference
Strange Adventures #18 (1952) value — Ungraded $91 vs Grade 8.0 $423. Grade 8.0 sells for 4.65× Ungraded (+365%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 4.65× (+365%) the Ungraded price — a $332 difference per comic.
Grade 8.0 sells for 2.23× (+123%) the Grade 6.0 price — a $233 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Strange Adventures #18 (1952), the jump from Ungraded to Grade 8.0 is worth $332 (4.65×) — 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).