Ungraded vs MS66 2017 W [PROOF] $100 American Gold Eagle: price difference
2017 W [PROOF] $100 American Gold Eagle value — Ungraded $5438 vs MS66 $5499. MS66 sells for 1.01× Ungraded (+1%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Ungraded vs MS66
$5438→$5499
MS66 sells for 1.01× (+1%) the Ungraded price — a $61 difference per coin.
Should you get this coin graded?
Grading runs about $30 per coin all-in. On 2017 W [PROOF] $100 American Gold Eagle, the jump from Ungraded to MS66 is worth $61 (1.01×) — 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).