How to evaluate diamonds?

It is known that diamond is a very beautiful jewel. Its beauty makes it an attractive and valuable. Diamond is also an element which is the hardest known to man, and therefore is extremely useful. Why a diamond has a higher value than the other?

It is essential that rare and that it can not be found so often in nature. Diamonds that are on sale may be different in color and in quality. They come in all colors of the rainbow. Some colors are rarer than others. The most expensive are those diamonds that are colorless. Very rare is red diamond and blue. Noblest diamond is black opal.

Another factor, which is very important in determining the value of a diamond, is cleanliness. Diamonds can be cleaned like the tears, but may have minor or major defects. Their price depends on the way of treatment. Only after grinding are some jewels can see them glitter and glow, and hence their beauty. In addition to the cultivation and the sheer size of the stone has an impact on value. Value is expressed in carats. One carat equals a fifth of a gram. These carats are not the same units as for gold.

There are diamonds so expensive that even played an important role in history. The best known is KOHINOOR which has the longest history of all diamonds in the world. In order to find this golden stone, many Asian rulers tried to conquer India. Although, extremely blue diamond, weighing approximately 44 charts, is also passed through many hands. It is believed that it brings bad luck to the one who owns it. Other famous diamonds are Orlov, who was once decorated with a crown of Russian emperors. Diamond Rezan, which is now in the Louvre in Paris, and Cullinan, parts of which are incorporated in the British crown and scepter.