Ungraded vs Grade 8.0 Captain Marvel #21 (1970): price difference
Captain Marvel #21 (1970) value — Ungraded $11 vs Grade 8.0 $59. Grade 8.0 sells for 5.36× Ungraded (+436%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 5.36× (+436%) the Ungraded price — a $48 difference per comic.
Grade 6.0 sells for 3.45× (+245%) the Ungraded price — a $27 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Captain Marvel #21 (1970), the jump from Ungraded to Grade 8.0 is worth $48 (5.36×) — 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).