Ungraded vs Grade 8.0 Thor #289 (1979): price difference
Thor #289 (1979) value — Ungraded $5 vs Grade 8.0 $56. Grade 8.0 sells for 11.2× Ungraded (+1020%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 11.2× (+1020%) the Ungraded price — a $51 difference per comic.
Grade 8.0 sells for 4.31× (+331%) the Grade 6.0 price — a $43 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Thor #289 (1979), the jump from Ungraded to Grade 8.0 is worth $51 (11.2×) — 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).