Ungraded vs Grade 8.0 Superboy #90 (1961): price difference
Superboy #90 (1961) value — Ungraded $12 vs Grade 8.0 $88. Grade 8.0 sells for 7.33× Ungraded (+633%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 7.33× (+633%) the Ungraded price — a $76 difference per comic.
Grade 6.0 sells for 4.75× (+375%) the Ungraded price — a $45 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Superboy #90 (1961), the jump from Ungraded to Grade 8.0 is worth $76 (7.33×) — 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).