The rules for choosing jewelry: how to determine if there is much in a typical carat diamond? 1 carat - is how many grams?

Like fashion on clothes or shoes, in the preferences for certain jewelry there are also their own tendencies. Only the eternal classic does not change: exquisite rings, bracelets, pendants and diamond earrings still fascinate with their beauty. Every beautiful woman dreams of becoming a possessor of stones at least a few carats. 1 diamond can reach a weight of several dozen carats, and to understand whether it is a lot or not, several factors need to be taken into account.

What are diamonds

In themselves, diamond stones are formed in special natural conditions, where there is everything necessary for crystal formation. And basically, their origin is more likely in mountainous areas. Diamonds of large sizes are a rarity, small stones are much more common among them. Therefore, even a carcass weighing a few carats is very expensive.

A diamond jewel that has undergone faceting is called a diamond. Since in grinding each stone becomes unique, but loses a few carats in weight, the same diamond before and after treatment differs by a factor of hundreds of times.

How are the stones evaluated?

Large and small diamonds are evaluated according to different criteria. In the first case, color and purity matter, in the second case weight and not individual features of the stone. The unit of weight of these precious stones is considered to be carat - 1 millet seed.

This is only an approximate measure, and it is influenced by the most unusual factors. The same weighings, carried out at different levels of air humidity, produced discrepancies of up to 0.13 grams. With the expansion of the geography of trade in jewelry, it became necessary to give this unit of measurement the exact value.

Systematization of measurements

In 1877, French traders suggested setting the official figure: 1 carat should be 0.205 g. The proposal was not supported, but after a quarter of a century, in 1907, at a conference in Paris, the question of the systematization of common measures and weights was raised again. Even later, since 1930, the final international weight measure has been established, which allows one to determine exactly what 1 carat is. "How many grammes does this stone weigh?" - buyers from jewelry salons often ask buyers. Today, its measure is 0.2 grams (ie, 1/5 part) or 200 mg.

In addition, there is another possibility to determine how much carat weighs. 1 diamond of such a mass is considered equal to 3,086 ternary grain, used for weighing large gemstones.

In the professional environment of jewelers it is customary to determine the mass of stones in a different way. It can be said that carat is one hundred points (a unit often used as an indicator of the weight of small and medium sized stones).

Features of weighing different stones

Is it much: 1 carat? How many grammes does a standard diamond weigh? Usually, its weight is measured with the highest precision to hundredths of a fraction, and the mass is set by means of sensitive karat weights. It can be approximately determined by the diameter of the stone. Very large diamonds weighing over 6 carats are sold only at auctions, they are labeled melange.

Small stones, weighing no more than 0.25 carats, are generally available, and they are commonly called melee. If their weight does not exceed 0,01 carats, then this is a diamond crumb, which is also important in jewelry business. Abbreviated 1 carat is indicated as 1 ct, this reduction should not be confused with the abbreviation kt used to refer to the purity of gold in America.

What does a 1-carat stone look like? The diamond can have a diameter of up to 6 mm and a height of up to 4 mm: it looks not too impressive. Everything depends on the density and inclusions in its composition. When it comes exclusively to diamonds, carats can tell a lot about their size. For example, carats of a diamond match its size, if they have a round facet with 57 facets.

How to choose diamonds

Jewelers recommend applying the rule of four "si" (English-C): carat-carat; Clarity - purity; Color - color and cut. The main indicator is weight, the bigger it is, the higher the cost. A quality diamond should not have a color, when it is ideal, it becomes invisible in the water. It was from here that the expression "a diamond of pure water" appeared.

By color, diamonds are divided into classes. The first class is also among Russian stones, although they are more often related to the second or third. If they do not have internal defects, then they are "clean". A similar classification makes it possible to distinguish among them diamonds that do not have cracks visible to the naked eye or under the enlarger. Cutting is already an element of decor. In general, round stones are offered for sale, although, if desired, you can order another form.

It is difficult to distinguish a true diamond from a counterfeit for a normal buyer, but always pay attention to the mark with the number of faces. The price depends on it. For example, the marking on the label 1Kr 57-0.25 1 / 5A means that it is a round stone, one with 57 facets, which weighs 0.25 carats, with a color of class 1 and a purity of 5A. A ring with such a stone will cost about 25,000 rubles. Products with diamonds up to 0.1 carats at a cost do not exceed 7500 rubles. The stone in polkarata will cost 150,000 rubles, but it is not a very expensive diamond. Price 1 carat May exceed half a million rubles.