Ungraded vs Grade 8.0 Swamp Thing #17 (1975): price difference
Swamp Thing #17 (1975) value — Ungraded $6 vs Grade 8.0 $64. Grade 8.0 sells for 10.67× Ungraded (+967%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 10.67× (+967%) the Ungraded price — a $58 difference per comic.
Grade 6.0 sells for 8.83× (+783%) the Ungraded price — a $47 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Swamp Thing #17 (1975), the jump from Ungraded to Grade 8.0 is worth $58 (10.67×) — 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).