Ungraded vs Grade 8.0 Superman #137 (1960): price difference
Superman #137 (1960) value — Ungraded $19 vs Grade 8.0 $321. Grade 8.0 sells for 16.89× Ungraded (+1589%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 16.89× (+1589%) the Ungraded price — a $302 difference per comic.
Grade 6.0 sells for 5.42× (+442%) the Ungraded price — a $84 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Superman #137 (1960), the jump from Ungraded to Grade 8.0 is worth $302 (16.89×) — 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).