Ungraded vs Grade 8.0 Tarzan #18 (1950): price difference
Tarzan #18 (1950) value — Ungraded $20 vs Grade 8.0 $363. Grade 8.0 sells for 18.15× Ungraded (+1715%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 18.15× (+1715%) the Ungraded price — a $343 difference per comic.
Grade 6.0 sells for 6.7× (+570%) the Ungraded price — a $114 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Tarzan #18 (1950), the jump from Ungraded to Grade 8.0 is worth $343 (18.15×) — 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).