Ungraded vs Grade 8.0 New Mutants #18 (1984): price difference
New Mutants #18 (1984) value — Ungraded $6 vs Grade 8.0 $29. Grade 8.0 sells for 4.83× Ungraded (+383%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 4.83× (+383%) the Ungraded price — a $23 difference per comic.
Grade 6.0 sells for 4.17× (+317%) the Ungraded price — a $19 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On New Mutants #18 (1984), the jump from Ungraded to Grade 8.0 is worth $23 (4.83×) — 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).