Ungraded vs Grade 8.0 Sub-Mariner #63 (1973): price difference
Sub-Mariner #63 (1973) value — Ungraded $7 vs Grade 8.0 $73. Grade 8.0 sells for 10.43× Ungraded (+943%). Prices updated September 2026.
Medians of real sold listings per grade, updated September 2026 — how we compute values.
Grade 8.0 sells for 10.43× (+943%) the Ungraded price — a $66 difference per comic.
Grade 6.0 sells for 3.71× (+271%) the Ungraded price — a $19 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Sub-Mariner #63 (1973), the jump from Ungraded to Grade 8.0 is worth $66 (10.43×) — 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).