Ungraded vs MS66 1959 [PROOF] Washington Quarter: price difference
1959 [PROOF] Washington Quarter value — Ungraded $16 vs MS66 $154. MS66 sells for 9.63× Ungraded (+863%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
MS66 sells for 9.63× (+863%) the Ungraded price — a $138 difference per coin.
MS66 sells for 6.16× (+516%) the MS62 price — a $129 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 1959 [PROOF] Washington Quarter, the jump from Ungraded to MS66 is worth $138 (9.63×) — 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).