Ungraded vs Grade 8.0 Action Comics #627 (1988): price difference
Action Comics #627 (1988) value — Ungraded $4 vs Grade 8.0 $20. Grade 8.0 sells for 5× Ungraded (+400%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 5× (+400%) the Ungraded price — a $16 difference per comic.
Grade 6.0 sells for 3.25× (+225%) the Ungraded price — a $9 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Action Comics #627 (1988), the jump from Ungraded to Grade 8.0 is worth $16 (5×) — at today's prices that doesn't cover the fee — grading this one is for the collection, not the flip. 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).