Ungraded vs Grade 8.0 Superboy #31 (1954): price difference
Superboy #31 (1954) value — Ungraded $96 vs Grade 8.0 $1469. Grade 8.0 sells for 15.3× Ungraded (+1430%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 15.3× (+1430%) the Ungraded price — a $1,373 difference per comic.
Grade 8.0 sells for 6.25× (+525%) the Grade 6.0 price — a $1,234 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Superboy #31 (1954), the jump from Ungraded to Grade 8.0 is worth $1,373 (15.3×) — 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).