Ungraded vs Grade 8.0 Detective Comics [Pure Silver Foil] #27 (2018): price difference
Detective Comics [Pure Silver Foil] #27 (2018) value — Ungraded $207 vs Grade 8.0 $158. Ungraded sells for 1.31× Grade 8.0 (+31%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Ungraded sells for 1.31× (+31%) the Grade 8.0 price — a $49 difference per comic.
Ungraded sells for 1.58× (+58%) the Grade 6.0 price — a $76 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Detective Comics [Pure Silver Foil] #27 (2018), the jump from Grade 8.0 to Ungraded is worth $49 (1.31×) — 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).