Ungraded vs MS66 1940 Mercury Dime: price difference
1940 Mercury Dime value — Ungraded $8 vs MS66 $68. MS66 sells for 8.5× Ungraded (+750%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Ungraded vs MS66
$8→$68
MS66 sells for 8.5× (+750%) the Ungraded price — a $60 difference per coin.
MS62 vs MS66
$16→$68
MS66 sells for 4.25× (+325%) the MS62 price — a $52 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 1940 Mercury Dime, the jump from Ungraded to MS66 is worth $60 (8.5×) — 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).