Ungraded vs MS66 1891 O Morgan Dollar: price difference
1891 O Morgan Dollar value — Ungraded $51 vs MS66 $7610. MS66 sells for 149.22× Ungraded (+14822%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
MS66 sells for 149.22× (+14822%) the Ungraded price — a $7,559 difference per coin.
MS66 sells for 23.71× (+2271%) the MS62 price — a $7,289 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 1891 O Morgan Dollar, the jump from Ungraded to MS66 is worth $7,559 (149.22×) — 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).