Ungraded vs Grade 8.0 Amazing Spider-Man #21 (1965): price difference
Amazing Spider-Man #21 (1965) value — Ungraded $138 vs Grade 8.0 $665. Grade 8.0 sells for 4.82× Ungraded (+382%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 4.82× (+382%) the Ungraded price — a $527 difference per comic.
Grade 8.0 sells for 2.68× (+168%) the Grade 6.0 price — a $417 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Amazing Spider-Man #21 (1965), the jump from Ungraded to Grade 8.0 is worth $527 (4.82×) — 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).