What Makes Some Diamonds More Valuable?

Basically, a diamond is a beautifull gem. So we might say that its beauty makes it desirable and valuable. The diamond is also the hardest substance known to man, and this hardness is very useful. So this also makes the diamond valuable. Now why should one diamond be more valuable than another? Well, the diamonds that are offered for sale in jewellery  may vary considerably in colour and quality.

They occur in all colours of  the rainbow. Some colours are rarer than others. The highest values are placed on those tinged with red or blue, and clear, colourless diamonds. Another factor which has an important bearing on values is purity. Diamonds may be as pure as a drop of water, or may show defects from a small pinpoint to a large flaw.

There are many diamonds that have been so valuable they have actually played a part in history. The most famous of these is the Koh-i-noor (Mount of Light), which have the longest history of any diamond in the world. Possession of this stone was so greatly desired by the rulers of Asia that practically all of the conquests of india from 1400 to 1828 were the result of it!

The hope, and unusually blue diamond weighing about 44 carats, has also passed through many hands. The hope is said to bring misfortune to all who possess it. Other famous diamonds are the Orloff, a former Russian crown jewel; the Regent, now in the Louvre in Paris; and the Cullinan, whose pieces are in the British crown and scepter.

Inferior grade diamonds are used in industry. Many are manufactured into diamond-grinding wheels which are used to sharpen tools and grind lenses. Industrial diamonds are also used in drills by minning companies to drill through rock.   

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