Ungraded vs MS66 1979 S [TYPE 1 PROOF] Kennedy Half Dollar: price difference
1979 S [TYPE 1 PROOF] Kennedy Half Dollar value — Ungraded $5 vs MS66 $27. MS66 sells for 5.4× Ungraded (+440%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
MS66 sells for 5.4× (+440%) the Ungraded price — a $22 difference per coin.
MS66 sells for 3.38× (+238%) the MS62 price — a $19 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 1979 S [TYPE 1 PROOF] Kennedy Half Dollar, the jump from Ungraded to MS66 is worth $22 (5.4×) — 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).