Ungraded vs MS66 1940 [PROOF] Mercury Dime: price difference
1940 [PROOF] Mercury Dime value — Ungraded $108 vs MS66 $4365. MS66 sells for 40.42× Ungraded (+3942%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
MS66 sells for 40.42× (+3942%) the Ungraded price — a $4,257 difference per coin.
MS66 sells for 19.06× (+1806%) the MS62 price — a $4,136 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 1940 [PROOF] Mercury Dime, the jump from Ungraded to MS66 is worth $4,257 (40.42×) — 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).