Ungraded vs MS66 1974 S [PROOF] Kennedy Half Dollar: price difference
1974 S [PROOF] Kennedy Half Dollar value — Ungraded $4 vs MS66 $183. MS66 sells for 45.75× Ungraded (+4475%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
MS66 sells for 45.75× (+4475%) the Ungraded price — a $179 difference per coin.
MS62 sells for 18.75× (+1775%) the Ungraded price — a $71 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 1974 S [PROOF] Kennedy Half Dollar, the jump from Ungraded to MS66 is worth $179 (45.75×) — 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).