Silver Coin Values: Melt Value, Premiums and the Sheldon Grade Scale
A silver coin can be worth exactly its metal content, a little more, or many times more. Which of these applies depends on what kind of coin it is, how many were made, and what condition it is in. Valuing one is a step-by-step exercise: start with the silver it contains, add the premium the market pays for that type of coin, then ask whether collectors would pay extra for its date, mint or grade.
Step one: melt value
Melt value is the worth of the pure silver in the coin at the current spot price. The formula is simple:
Melt value = gross weight (troy oz) × fineness × spot price per troy ounce
A troy ounce is 31.1035 g. Modern bullion coins state their fine silver content directly, so a one-ounce Maple Leaf contains one troy ounce of silver regardless of its .9999 fineness. Older circulating coins rarely do, so you need the gross weight and the alloy. Spot prices are explained on the silver prices page.
Step two: the bullion premium
No one sells newly minted coins at melt value. Mints charge distributors a margin over spot, dealers add their own, and demand shifts the total up or down. The premium is usually expressed as a percentage over melt. For silver, premiums are typically higher in percentage terms than for gold, because the costs of minting, shipping and storing a coin are large relative to the value of an ounce of silver. Widely recognized coins such as those in the silver bullion coins overview tend to resell close to the premium they were bought at, minus the dealer’s spread.
Step three: numismatic value
Some silver coins are worth more to collectors than their metal. The main drivers are:
- Rarity. Low original mintage, or few surviving examples after melting.
- Date and mint mark. The same design struck at different mints or in different years can vary widely in value. US coins carry small letters showing the mint, such as D for Denver or S for San Francisco.
- Condition. A coin with full detail and original surfaces is worth more than a worn one, sometimes dramatically so.
- Errors and varieties. Doubled dies, overdates and other production anomalies attract specialists.
- Eye appeal and toning. Attractive natural toning can add value; cleaning almost always reduces it.
If none of these apply, a coin trades on its silver content alone.
The Sheldon 70-point grading scale
Condition is described with the Sheldon scale, devised by numismatist William Sheldon in the mid-20th century and now the standard in the United States and widely used elsewhere. It runs from 1, a barely identifiable coin, to 70, a flawless strike under magnification. Professional grading services assign these numbers and seal the coin in a labelled holder.
| Grade | Abbreviation | Number | What it means |
|---|---|---|---|
| Poor | P | 1 | Type barely identifiable, heavily worn |
| Fair | FR | 2 | Worn smooth, some detail visible |
| About Good | AG | 3 | Rims worn into the legends |
| Good | G | 4–6 | Main design visible, outlined; little detail |
| Very Good | VG | 8–10 | Design clear but flat, some inner detail |
| Fine | F | 12–15 | Moderate even wear; all major elements sharp |
| Very Fine | VF | 20–35 | Light to moderate wear on high points |
| Extremely Fine | EF or XF | 40–45 | Light wear on the highest points only |
| About Uncirculated | AU | 50–58 | Traces of wear; most mint luster remains |
| Mint State | MS | 60–70 | No wear; graded by marks, luster and strike |
Within Mint State, MS-60 coins show many contact marks, MS-65 is a common benchmark for “gem” quality, and MS-70 means no visible flaws at five-power magnification. Proof coins, struck with polished dies for collectors, are graded on the same numbers with a PR or PF prefix. For modern bullion coins, the gap between MS-69 and MS-70 can mean a substantial price difference, though the silver inside is identical.
Junk silver and constitutional silver
“Junk silver” is circulated coinage worth mainly its silver content. The term carries no insult: these coins are popular precisely because they trade near melt and come in small, recognizable units. In the United States the term “constitutional silver” refers to the same coins.
US 90% silver. Dimes, quarters and half dollars dated 1964 and earlier are 90% silver and 10% copper. A dime weighs 2.5 g, a quarter 6.25 g and a half dollar 12.5 g, so each contains roughly 0.0723, 0.1808 and 0.3617 troy oz of silver respectively. Dealers often trade them by face value: one dollar face of 90% coins holds about 0.715 troy oz, a figure that allows for wear.
US 40% silver. Kennedy half dollars dated 1965 to 1970 were made of a clad composition containing 40% silver overall, about 0.148 troy oz per coin. Kennedy halves from 1964 are 90% silver; from 1971 on, circulating halves contain no silver.
A worked example
The following uses a hypothetical spot price of $30 per troy ounce, chosen only to make the arithmetic easy. It is not a real or current quotation.
- One-ounce Silver Eagle: 1 × $30 = $30 melt. If a dealer asks $36, the premium is $6, or 20%.
- One pre-1965 Washington quarter: 0.1808 × $30 ≈ $5.42 melt.
- A roll of 40 such quarters ($10 face): about 7.15 oz × $30 ≈ $215 melt, using the 0.715 oz per dollar rule.
- One 1967 Kennedy half (40%): 0.148 × $30 ≈ $4.44 melt.
If one of those quarters were a scarce date in high Mint State, its collector value would dwarf these figures, which is why it pays to check dates before selling junk silver by weight.
Key points
- Start with melt value: weight × fineness × spot.
- Add the bullion premium, usually higher in percentage terms for silver than for gold.
- Rarity, date, mint mark and condition can add numismatic value well above melt.
- The Sheldon scale grades coins from Poor-1 to Mint State-70.
- Pre-1965 US dimes, quarters and halves are 90% silver; 1965–1970 Kennedy halves are 40%.
- When you are ready to act, the buying silver coins guide covers the practical steps.
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