Diamond is the king among gemstones. Its shining is the most attractive of all, its hardness is beyond competition, and even a simple dress in combination with a diamond necklace is able to turn a lady into a queen. From this section, you can learn everything concerning diamonds, their varieties, and the main characteristics according to which diamonds are evaluated. You will also find out about some of the famously known diamonds.
Diamond is a type of carbon isomer which is known and appreciated for its exceptional hardness and thermal conductivity, as well as for its light dispersion and refraction rate. One of diamond’s distinguishing features is luminescence, which is an ability to emit rays of light when exposed to ultraviolet, cathode, or X-rays. The main parameters affecting diamond's quality are the color, clarity, weight in carats, and cut.
Read more about diamond gemology.
Color is one of the four main characteristics that determine diamond's value and quality. Pure, ideally clear diamond is always absolutely transparent and colorless. This diamond type is the most rare and thus the most valuable.
Read more about diamond color.
Clarity, or purity, is the most significant factor in diamond's evaluation. The ideal, 100-percent-clear diamond does not include any admixtures and does not have any defects. Both inner and surface defects can affect the quality of the gem, its look, and its price.
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The group of cutting styles used for diamonds is called the brilliant cut. With this type of cut, usually it is presupposed that the lower facets radiate from the center of the gem towards the girdle. The brilliant cut has 57 facets. Its most classical shape is round, although other shapes are possible as well.
Read more about the classic brilliant cut.
The biggest rough diamond ever discovered is called Cullinan. Found in 1905 by the workers of Premier Diamond Mining Company, it was as big as a man’s fist and weighed 3106 carats. Today, it would have been priced at 7.5 billion US dollars.