Diamonds are girl's best friend, and has become a rare and precious stones, jewelry, without any force. But the jewelry, which is this rare and precious gem immediately shoot up to a value, and women from all walks of life in the hope that one day they will be treated in such a lovelinks jewelry. But how much we really know about diamonds and why are they so expensive? This article lists the most expensive diamonds in the world and why they are so expensive that you know, if you have a real gem on your hands.

1st De Beers Centenary Diamond (worth 100 million U.S. dollars) - This diamond stands at a whopping 273 carats (55 grams) in weight and is the third largest diamond ever to be produced from the Premier mine. Gemological Institute of America is rated Class D color diamond, which is the highest grade possible. Precious rock was originally established in 1986, and only a few people know about his discovery, which was sworn to secrecy. Rough diamond shape that is difficult to reduce and eventually was given a diamond to cut a large modern stone.

2nd Hope Diamond (worth 350 million U.S. dollars) - hope diamond weighs much less 45 times (9.1 g) and may be located in Washington DC, United States of America, the Smithsonian Museum of Natural History. It is classified as type IIB diamond and is very famous for the fact that he dubbed as cursed. Hope Diamond glows a DC-blue to the naked eye on a small amount of boron crystal, but exhibits a red phosphor under ultraviolet light.

3rd Cullinan Diamond (worth 400 million U.S. dollars) - Cullinan diamond can be proud of the fact that it is the largest rough gemstone quality diamond ever found, weighing 3,106 carats, and (621 grams). Precious stones have been discovered in the Premier diamond mine all the way back to 1905, Mr. Frederick Wells. The stone was very expensive, that it is actually over three months, decide on the best way to reduce it, and the first attempt was unsuccessful tat. Cullinan giant has finally been cut into three parts and then cut again into nine large stones and other small fragments.

4th Sancy Diamond (UN estimated) - Sancy diamond is a pale yellow diamond of 55.3 carats (11.1g). As one of the most coveted gemstones in the world, it is grand old age 600 years and the journey that began in the legendary Golconda mines in India, France to its current use as one of the French crown jewels.

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