Calculator and rules for valuing precious metals

Imagine a situation familiar to many: you were sorting out old things on the mezzanine or inherited a box, and at the very bottom you discovered a darkened old coin. The first thought that comes to mind is: “What if this is a rare specimen that costs a fortune?”

But how can an ordinary person understand whether he is holding a real treasure in his hands or just a beautiful historical souvenir? Coin valuation (numismatics) is an exact science with its own strict rules. Let's look in simple terms at what actually makes up the price of any coin on the market.

Two prices for one coin: metal and history

Any ancient (as well as modern bullion) coin always has two completely different values. The final selling price is formed from their combination:

1. Base value of the material. If a coin is minted from a precious metal (gold, silver, platinum), by default it cannot cost less than this piece of metal. This is a fireproof amount.
2. Collectible (numismatic) value. This is the very “extra charge for history.” It depends on the rarity of the coin, the year it was issued and its condition. It is because of this historical markup that a rare copper penny of the 18th century at auction can cost several times more than a heavy gold chervonets issued in a million copies.

Step 1: Calculate the base cost of the metal

Any professional assessment begins with determining the amount of pure precious metal in the product. The fact is that coins are rarely minted from 100% pure gold or silver - such metal is too soft. Impurities (ligature) are always added to it for strength: copper, nickel or zinc.

To understand exactly how much precious metal is in your find, you need to know the total weight of the coin and its fineness (the proportion of pure substance). Use our handy online calculator below. It will instantly separate the weight of impurities from the pure precious metal.

Step 2: What increases the cost tenfold?

Suppose the calculator showed that the coin contains silver worth 2000 rubles. Does this mean that the red price of this coin is two thousand? Absolutely not! Its real market price can be tens of times higher if three conditions are met:

• Cirtage (Rarity). The fewer coins of this denomination and year of issue have survived to this day, the more desperately collectors hunt for it.
• Safety (Grade). This is the most critical factor. A coin in perfect mint condition (without abrasions, with the original stamp shine) is estimated to be 10–50 times more expensive than the exact same coin, but one that has been passing around for a long time. Remember the main rule: never try to clean old coins with paste, soda or acid! This instantly and permanently destroys their collectibility value.
• Manufacturing defect. Oddly enough, manufacturing errors (for example, a shift in the design, a split stamp or a missing edge) make the coin unique, which greatly increases the interest of numismatists.

Where is it safe to sell a valuable find?

If you realize that you have found something interesting, a logical question arises - how to turn it into money and not fall for scammers.

The worst thing you can do with a good coin is take it to the nearest nameless pawnshop. A pawnshop employee will evaluate it exclusively as scrap (simply weigh the metal), completely ignoring its historical value. Spontaneous markets and purchases in metro crossings should also be avoided - they will offer you only a small part of the real cost.

If you want to sell a coin fairly and profitably, you need a professional coin redemption, where numismatists work. In specialized centers, specialists conduct free examinations in front of the client, use precise scales and spectrometers, and most importantly, check with the latest catalogs of world auctions. Only there will they offer you a price that is as close as possible to the real market, and will pay you the money immediately and without risks.