Ungraded vs Grade 8.0 Twilight Zone #21 (1967): price difference
Twilight Zone #21 (1967) value — Ungraded $9 vs Grade 8.0 $71. Grade 8.0 sells for 7.89× Ungraded (+689%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 7.89× (+689%) the Ungraded price — a $62 difference per comic.
Grade 6.0 sells for 3.89× (+289%) the Ungraded price — a $26 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Twilight Zone #21 (1967), the jump from Ungraded to Grade 8.0 is worth $62 (7.89×) — 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).