Ungraded vs Grade 8.0 Amazing Spider-Man #13 (1964): price difference
Amazing Spider-Man #13 (1964) value — Ungraded $446 vs Grade 8.0 $4731. Grade 8.0 sells for 10.61× Ungraded (+961%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 10.61× (+961%) the Ungraded price — a $4,285 difference per comic.
Grade 6.0 sells for 4.04× (+304%) the Ungraded price — a $1,358 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Amazing Spider-Man #13 (1964), the jump from Ungraded to Grade 8.0 is worth $4,285 (10.61×) — 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).