Ungraded vs MS66 1928 S Mercury Dime: price difference
1928 S Mercury Dime value — Ungraded $7 vs MS66 $2703. MS66 sells for 386.14× Ungraded (+38514%). Prices updated September 2026.
Medians of real sold listings per grade, updated September 2026 — how we compute values.
MS66 sells for 386.14× (+38514%) the Ungraded price — a $2,696 difference per coin.
MS62 sells for 42.14× (+4114%) the Ungraded price — a $288 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 1928 S Mercury Dime, the jump from Ungraded to MS66 is worth $2,696 (386.14×) — 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).