What are your coins
really worth?
A coin is worth its metal — plus whatever collectors will pay above it. Assay blends live spot prices with numismatic premiums and graded sold comparables, so you see both the melt floor and the collector value at a glance.
How to value coins & bullion
Every coin has a melt floor — the live value of its gold, silver or platinum content. Bullion trades close to this; rare coins trade far above it.
The numismatic premium on top is driven by grade (certified MS/PR grades), rarity (mintage, key dates, errors) and demand among collectors.
Assay tracks spot prices in real time and layers verified graded comps over them, so your estimate updates with the metal market and reflects the collector premium for your specific coin and grade.
Metal & weight
The live spot value of the gold or silver content sets the floor.
Grade (MS / PR)
Certified condition grades can lift a coin far above melt.
Rarity & key dates
Low mintages, key dates and errors carry the steepest premiums.
Eye appeal & toning
Strike quality and original surfaces sway high-grade prices.
Record coins & bullion sales
| Item | Price | Why |
|---|---|---|
| Pre-1933 Gold Double Eagle | $2,000+ | Spot-linked plus numismatic premium |
| Key-date Silver Dollar (MS) | $10k+ | Grade and scarcity drive the price |
| 1933 Double Eagle | $18.9M | Sotheby's, 2021 — the ultimate rarity |
Public auction results, shown to illustrate the value drivers Assay blends into every valuation. Not investment advice.
The trusted number for coins & bullion.
Instant blended value
Live sold comps, active asks and price guides weighted into one fair value with a confidence range — in seconds.
Sell safely, for less
One-tap, escrow-protected listings at a fraction of ~13% marketplace fees and 20–26% auction premiums.
One vault, everywhere
Track your coins & bullion beside every other market in one portfolio, synced across Android, iOS and web.
Coins & Bullion valuation FAQ
In two layers: the live melt value of the metal, plus a numismatic premium for grade, rarity and demand. Assay separates and totals both so you always see the floor and the collector value.
Common bullion trades close to melt; key dates, high grades and errors trade well above it. Assay's estimate shows exactly how much premium your coin carries.
A 1933 Double Eagle sold for about $18.9M in 2021 — a one-of-a-kind legal example, showing how rarity dwarfs metal value.
Yes — your portfolio re-values against live spot prices, so bullion and numismatic holdings stay current automatically.
You get free valuations every day, with unlimited valuations and live portfolio tracking on Pro.
Verified data sources
The authoritative pricing references Assay blends and links to for coins & bullion — so every valuation is traceable.
Independent third-party sources, linked for verification. Trademarks belong to their respective owners; Assay is not affiliated unless stated.
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Know the real worth of what you hold
From graded cards and coins to watches, art and antiques — one valuation standard across every collectible market.
Know what your coins & bullion is
really worth.
Free to start — on Android, iOS and the web. Value, track and sell in one secure vault.