Ungraded vs Grade 8.0 Blackhawk #131 (1958): price difference
Blackhawk #131 (1958) value — Ungraded $19 vs Grade 8.0 $231. Grade 8.0 sells for 12.16× Ungraded (+1116%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 12.16× (+1116%) the Ungraded price — a $212 difference per comic.
Grade 6.0 sells for 5.21× (+421%) the Ungraded price — a $80 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Blackhawk #131 (1958), the jump from Ungraded to Grade 8.0 is worth $212 (12.16×) — 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).