Ungraded vs Grade 8.0 Thor #337 (1983): price difference
Thor #337 (1983) value — Ungraded $55 vs Grade 8.0 $70. Grade 8.0 sells for 1.27× Ungraded (+27%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 1.27× (+27%) the Ungraded price — a $15 difference per comic.
Grade 8.0 sells for 1.37× (+37%) the Grade 6.0 price — a $19 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Thor #337 (1983), the jump from Ungraded to Grade 8.0 is worth $15 (1.27×) — at today's prices that doesn't cover the fee — grading this one is for the collection, not the flip. 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).