Ungraded vs Grade 8.0 Thor #337 (1983): price difference
Thor #337 (1983) value — Ungraded $60 vs Grade 8.0 $77. Grade 8.0 sells for 1.28× Ungraded (+28%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 1.28× (+28%) the Ungraded price — a $17 difference per comic.
Grade 8.0 sells for 1.51× (+51%) the Grade 6.0 price — a $26 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 $17 (1.28×) — 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).