Like fashion for clothes or shoes, there are also trends in preferences for certain jewelry. Only the eternal classic remains unchanged: exquisite rings, bracelets, pendants and earrings with diamonds still fascinate with their beauty. Every beauty dreams of becoming the owner of stones of at least a few carats. 1 diamond can reach a weight of several tens of carats, and in order to understand whether it is a lot or a little, several factors must be taken into account.
What are diamonds
Diamond stones themselves are formed in special natural conditions, where there is everything necessary for the formation of a crystal. And in general, their origin is more likely in mountainous areas. Large-sized diamonds are a rarity; there are much more small stones among them. Therefore, even a copy weighing several carats is very expensive.fun.
A cut diamond is called a diamond. Since each stone becomes unique when polished, but loses several carats in weight, the same diamond before and after processing differs in value hundreds of times.
How are stones valued?
Large and small diamonds are evaluated according to different criteria. In the first case, color and purity matter, in the second, weight, and not the individual characteristics of the stone. The unit of weight of these precious stones is considered to be a carat - 1 millet grain.
This is only an approximate measure, and the most unusual factors influence its change. The same weighings, carried out at different levels of air humidity, gave discrepancies up to 0.13 grams. With the expansion of the geography of the jewelry trade, it became necessary to give this unit of measurement an exact value.
Organization of measurements
In 1877, French merchants proposed to establish an official figure: 1 carat should be 0.205 g. The proposal was not supported, but a quarter of a century later, in 1907, at a conference in Paris, the issue of systematizing uniform weights and measures was raised again. Even later, since 1930, the final international measure of weight was approved, which allows you to accurately determine what 1 carat is. "How many grams does this stone weigh?" - buyers often ask managers of jewelry stores. Today, its measure is 0.2 grams (i.e. 1/5 part) or 200 mg.
In addition, there is anotherthe ability to determine how much a carat weighs. 1 diamond of this weight is considered equal to 3.086 troy grains, used for weighing large gemstones.
In the professional environment of jewelers, it is customary to define the mass of stones in a different way. We can say that a carat is 1 hundred points (a unit often used as an indicator of the weight of small and medium stones).
Features of weighing different stones
Is it a lot: 1 carat? How many grams does a standard diamond weigh? Usually its weight is measured with the highest accuracy to hundredths, and the mass is established using sensitive carat scales. 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 designated melange.
Small stones, weighing no more than 0.25 carats, are publicly available, and they are called melee. If their weight does not exceed 0.01 carats, then this is a diamond grit, which is also important in jewelry. The abbreviation for 1 carat is 1 ct, which should not be confused with the abbreviation kt, which is used to denote the purity of gold in America.
What does a 1 carat stone look like? A diamond can have a diameter of up to 6 mm and a height of up to 4 mm: it does not look too impressive. It all depends on the density and inclusions in its composition. When it comes only to diamonds, carats can tell a lot about their size. For example, the carats of a diamond correspond to its size if it has a round cut with 57 facets.
How to choose the rightdiamonds
Jewellers recommend applying the rule of four "si" (English - C): carat - carat; clarity - purity; color - color and cut - cut. The main indicator is weight, the more it is, the higher the cost. A high-quality diamond should not have a color; with its perfect color, it becomes invisible in the water. This is where the expression “pure water diamond” came from.
By color, diamonds are divided into classes. The first class is also among Russian stones, although more often they belong 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 a magnifier. The cut is already an element of decor. Mostly round stones are offered for sale, although other shapes can be ordered upon request.
Distinguishing a real diamond from a fake is difficult for the average buyer, but you should always pay attention to the mark with the number of facets. 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 1 class and a clarity of 5A. A ring with such a stone will cost about 25,000 rubles. Items with diamonds up to 0.1 carats cost no more than 7,500 rubles. A half-carat stone will cost 150,000 rubles, but this is not a very expensive diamond. The price of 1 carat can exceed half a million rubles.
