Ungraded vs MS66 1955 [PROOF] Washington Quarter: price difference
1955 [PROOF] Washington Quarter value — Ungraded $23 vs MS66 $143. MS66 sells for 6.22× Ungraded (+522%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
MS66 sells for 6.22× (+522%) the Ungraded price — a $120 difference per coin.
MS66 sells for 4.61× (+361%) the MS62 price — a $112 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 1955 [PROOF] Washington Quarter, the jump from Ungraded to MS66 is worth $120 (6.22×) — 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).