Ungraded vs MS66 2005 S [SILVER OREGON PROOF] State Quarter: price difference
2005 S [SILVER OREGON PROOF] State Quarter value — Ungraded $15 vs MS66 $29. MS66 sells for 1.93× Ungraded (+93%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
MS66 sells for 1.93× (+93%) the Ungraded price — a $14 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 2005 S [SILVER OREGON PROOF] State Quarter, the jump from Ungraded to MS66 is worth $14 (1.93×) — at today's prices that doesn't cover the fee — grading this one is for the collection, not the flip. 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).