Ungraded vs Grade 8.0 Superboy #91 (1961): price difference
Superboy #91 (1961) value — Ungraded $20 vs Grade 8.0 $119. Grade 8.0 sells for 5.95× Ungraded (+495%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 5.95× (+495%) the Ungraded price — a $99 difference per comic.
Grade 6.0 sells for 2.65× (+165%) the Ungraded price — a $33 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Superboy #91 (1961), the jump from Ungraded to Grade 8.0 is worth $99 (5.95×) — 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).