Ungraded vs Grade 8.0 Amazing Spider-Man #328 (1990): price difference
Amazing Spider-Man #328 (1990) value — Ungraded $21 vs Grade 8.0 $31. Grade 8.0 sells for 1.48× Ungraded (+48%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 1.48× (+48%) the Ungraded price — a $10 difference per comic.
Grade 8.0 sells for 2.07× (+107%) the Grade 6.0 price — a $16 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Amazing Spider-Man #328 (1990), the jump from Ungraded to Grade 8.0 is worth $10 (1.48×) — 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).