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4C's of a Diamond

The diamond is the only gemstone in which all its properties and characteristics can be very precisely graduated. Worldwide experts assess diamonds according to the 4C system.


This system is now being used internationally mostly thanks to the International Gemmological Institute of America (GIA). By means of these assessment standards, a diamond can be very accurately determined, understood and described by its current value. It is important that this assessment is performed by an approved diamond laboratory such as GIA, HRD, IGI and/or a gemmologist of a jewelry company in which all necessary tools are available for diamond assessment. The world's most recognized diamond lab is the Gemmological Institute of America (GIA), with several laboratories worldwide. This institution has the strictest standards in the certification of diamonds.


Please keep in mind that although a diamond you purchase whether as a gift or for yourself can be described by its 4C combination, but its individual beauty may be far beyond these properties - regardless of its 4C's.


Its nature determines many properties of a diamond - but it requires the masterful hand to reveal its fire, its true brilliance and extraordinary beauty. If a diamond’s ground is so sharpened or too shallow, light is lost through the sides or bottom. This reduces its brilliance and thus its value. The perfection of grinding is therefore significantly responsible for getting the best out of a diamond. The perfection of grinding is therefore significantly responsible for getting the best out of a diamond.

Cut

Diamond Cuts

The cut quality has long been ascribed far too little attention.


The cut quality is obtained mainly from the proportions of the stone. In this case, the ratio of depth of the stone to diameter, the angle of the upper and lower part of the table surface, the accuracy in the application of the facets that play a role. But even with these values, it very much depends on the ratio of upper unit to base at which the facets are created, how evenly the facets are polished. It is also important that the stone is really smoothed and rounded. The girdle should be smooth and have no major differences in the strength.


For the beginners, it is not easy to understand the values and individual and mutual effects of the stones on cut quality.

Carat (Weight)

Diamond Carat Values

The Carat (ct) is a unit of weight. It is often incorrectly used to describe the size of a diamond. .Because a diamond with 2 Carat occurs much less frequently than a 1 carat, it is therefore about 3,5 times more precious. However, the weight of a diamond increases its value only when the other quality criteria are met. This is rare enough, because the probability of small inclusions is high in more weighted stones. A Carat (1ct) weighs just 0.2 grams and is divided into 100 points. This weighs a diamond with 25 points 0.25 Carat.

Clarity (Purity)

Diamond Clarity Gradation

Most diamonds have very small natural features which are stated as inclusions. The fewer and smaller inclusions are better since the light can penetrate the stone.


With the naked eye, these tiny colored minerals or spots which take us back to the time of origin of diamonds in the world can be hardly realized. The number, type, color, size and position of these inclusions can affect the value of a diamond - many of which are known only by experts and by using a loupe with 10x magnification.

Color

Diamond Color Scale

Diamonds are found in almost every color of the rainbow. White stones are most popular due to the difficulty to find.


Color Grading is done in alphabetical order of the color from D to Z in around 20 different subtle color shades. Their difference is so small that only experts can make the determination under certain lighting conditions and on the basis of standardized master stones.


The stones at the upper end of the scale are more expensive because they are rare. You can distinguish them extremely difficult with the naked eye. Diamonds which have higher color saturation than the color Z are called fancy diamonds and graded with a special color scheme.


Colored diamonds are in another part of the jewelry world and practiced at a special charm.

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