Ungraded vs MS66 1888 S Seated Liberty Quarter: price difference
1888 S Seated Liberty Quarter value — Ungraded $26 vs MS66 $5592. MS66 sells for 215.08× Ungraded (+21408%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
MS66 sells for 215.08× (+21408%) the Ungraded price — a $5,566 difference per coin.
MS62 sells for 29.38× (+2838%) the Ungraded price — a $738 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 1888 S Seated Liberty Quarter, the jump from Ungraded to MS66 is worth $5,566 (215.08×) — 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).