All diamonds
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Shape
The most common shape is round with 57 facets, it’s the classics of diamond cutting. The degree of perfection reached by Russian cutters is reflected in the fact that a flawless diamond cut is known across the world as the Russian cut. But there is also a number of other beautiful forms: square (cushion), rectangular (princess, Asscher, emerald, radiant), heart-shaped, pear-shaped, oval, trillion or marquise. Wisely selected shape will allow to maximize the carat weight, deal with imperfections of the stone and make the diamond shine its best. Cutting diamonds is a painstaking craft that requires fine skill and experience. Only optimal shape and ideally preformed cut can fully reveal the dazzling beauty of a diamond.
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Price
Diamond's cost depends on many factors - it's quality characteristics, it's rarity, last market trands. Generally, bigger and more colorless diamond, the more expensive it is. But there is no two similar stones in the world and our assortment allows you to choose a diamond for almost every taste and budget.
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Carat
The weight of a diamond is measured in carats. This ancient term comes from the name of the seeds of the Ceratonia tree. Hundreds of years ago, long before the invention of a precise scale, traders used seeds of a carob tree, each weighing exactly 0.2 grams, to weigh small objects. The size of a diamond is directly related to the number of its faces and its weight.
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Color
Colorless
Near colorless
Faint
This diamond has a highest grade of D , which means it is totally colorless.
This diamond has a grade of E. This is a very high grade, given to rare diamonds. Diamond is almost colorless.
This diamond has a grade of F. Diamond is more or less colorless, with a minor yellowish tint that only a professional can detect.
This diamond has a grade of G. Diamond has a minor yellowish tint that can be detected only in comparison with a colorless stone.
This diamond has a grade of J. Diamond has a light yellowish tint.
This diamond has a grade of K. Diamond has a light yellow tint.
This diamond has a grade of L. Diamond has an obvious yellow tint.
This diamond has a grade of M. Diamond has a yellow tint.
This diamond has a grade of H. Diamond has a minor yellowish tint that can be detected only in comparison with a colorless stone.
This diamond has a grade of I. Diamond has a barely noticeable yellowish tint.
Diamonds gain on different colors because of inclusions of different chemical elements. The variety of colors is huge. Most often you find white diamonds, which can range from completely colorless (denoted by the D letter) to yellow (denoted by Z). In this case, the colorless, the more expensive. A different story is fancy colored diamonds, rich and bright yellow, pink, purple, blue and even red. They do not obey this scale and are evaluated individually by intensity and color depth. -
Clarity
Very very
slightly includedVery slightly
includedSlightly included
Included
The fewer flaws and impurities a diamond has, the brighter is the brilliance. Natural diamonds are the result of carbon exposed to tremendous heat and pressure deep in the earth. This process can create a variety of internal inclusions and blemishes. Evaluating diamond clarity involves determining the number, size, relief, nature, and position of these characteristics, as well as how these affect the overall appearance of the stone. While no diamond is perfectly pure, the closer it comes, the higher its value.
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Cut
Diamonds are renowned for their ability to transmit light and sparkle so intensely. We often think of a diamond’s cut as shape (round, heart, oval, marquise, pear), but a diamond’s cut grade is also about how well a diamond’s facets interact with light. Precise artistry and workmanship are required to fashion a stone so its proportions, symmetry and polish deliver the magnificent return of light only possible in a diamond. A diamond’s cut is crucial to the stone’s final beauty and value.
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Additionally
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Fluorescence
Fluorescence is an organic feature to glow in the UV-lights. It emerges when a diamond is born - while its crystal structure is altered due to a whole range of environmental factors. The natural gift is invisible under electric light and only shows inside these gemstones for instance, in a night club.
The stunning natural feature of fluorescence can actually improve a diamond’s appearance. Thus, fluorescent tinted gems of yellowish shades look more «colorless» in the sunlight - thanks to a neutralizing inner blue glow.
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Diameter/length
Diameter / length of a polished diamond is a measurement of a diamond in millimeters, which is defined as an average of several measurements of diameter for rounds or as a maximum measurement in section of a girdle.
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Width
Width of a polished diamond is a measurement of a diamond in millimeters, lesser than length, which is defined as a measurement in section of a girdle differently for different diamond cuts.
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Year of mining
These days we are able to assign diamonds a unique ID the moment they emerge into the light of day from the ore they were hidden in. This allows us to pinpoint exactly where and when the diamond was mined. And you, in turn, might use the diamond's "birth year" as a reference to a special event in your life.
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Diamond origin
All our diamonds are mined in Russia. ALROSA is currently extracting diamonds from 11 Kimberlite pipes and 16 alluvial deposits. Two of the pipes are located in the Arkhangelsk Region in the northwest of Russia. All the other deposits lie in northern Siberia, in the Republic of Sakha (Yakutia).
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PRICE PER CARAT
The price of a diamond is calculated on the per carat basis and increases depending on the weight group to which the diamond belongs. There are three weight groups of diamonds: small (0.29 carat and less), medium (between 0.30 and 0.99 carat), and large (1.00 carat and more).
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Fluorescence
