Extraordinary Events

Mining company Petra Diamonds to find a special stone white diamond in the Cullinan mine, northeast of Pretoria, South Africa, in late September 2009. Findings, disclosed recently.

This 507.55-carat diamond worth, weighing approximately 100 grams. Shaped like a spear and large eyes like a chicken egg.

The new diamond discovered

Parties Petra reveals, this diamond is one of 20 best-quality diamonds and the largest ever found in this world. Color and clarity is very high level, an extraordinary thing for diamonds that have not been processed! The price is estimated at 20 million U.S. dollars or equivalent to Rp190 billion.

Mentioned, diamond experts are still analyzing it to determine the most appropriate value.

Just to know, Cullinan diamond mines known to always produce high-quality diamonds. One is the world's largest diamond: Cullinan diamond, found in January 1905. Carat value is 3106.75 and weighed 621.35 grams.

Once honed, Cullinan diamond cut into nine sections. You can see it in the crown of the kings and queens of England. Diamonds are forever!

World's Most Expensive Diamonds

Most expensive diamond sales record is broken by a successful Petra Diamonds sells 507-carat diamond valued at Rp 332.5 billion (U.S. $ 35.3 million with an exchange rate of Rp 9500 per dollar), on Friday 26 February 2010. Analysts jewelry, as quoted from Reuters, estimating the value of these rocks is among 20 high-quality diamonds, the average value of Rp 237.5 billion (U.S. $ 25 million). Diamonds are bought through a tender that was won by Chow Tai Fook Jewelry Co. Ltd based in Hong Kong. With record-breaking price of the most expensive, diamond has the potential to become one of the world's most important gem. These sales will boost profits Petra for the fiscal year ended in June with production and higher sales. Petra find the gem rocks in September last year. Petra has a 74 percent stake in Cullinan mine in South Africa, when bought from De Beers in 2007. Cullinan mine is the source of several famous diamonds, including the world's largest rough diamond with a carat 3106. The gem rocks cut from the rock Star of Africa which is currently stored in Britain's Crown Jewels. Petra is a member of the consortium to pay Rp 1.406 trillion (U.S. $ 148 million) when it bought from De Beers Cullinan mine, where 45 percent owned by one of the Anglo-American mining group.

Quality Of Diamonds

Because its physical diamonds Famous Quality is great, ESPECIALLY its hardness-word (diamonds) taken Greek language than Adamas ("impossible to tame")-and held a light on on their efforts.
Diamond

Resilience: Diamond is the hardest material in the form semulajadi That, with 10 on the Moh hardness scale comparison of excavation and having an absolute hardness value (absolute hardness) Between 167 and 231 gigapaskal in Various Examinations. Violence has been Known since past the bed again, Which Is the stem name.
diamond image

Violence, not the Same as That just shows the resilience of resistance to the hack, diamond hardness is in good is simple. Violence linked to keupayaan something broke due to material than blows. As with other materials, the macroscopic geometry of a diamond contributes to its resilience rather than rupture. Diamonds are cut in certain shapes more Easily broken proportional cuts in other Airways.

Color: Diamonds Were formed by the original so have highlights Various colors - clear, puih, blue, yellow, red, green, pink, war, - or black color. Diamond with a visible color Identified as "Colored diamonds." Colored diamonds or structural defects bendasing Womb That Causes the coloration, while pure or nearly pure diamonds are clear and without color. Most foreign bodies diamond replacing carbon atoms in the crystal network. The most common foreign body, nitrogen, causing little or war Yellowish color.
Expensive diamonds

Price: Now carrying Wittelsbach diamond created in 1664 in a 'dowry' engagement of King Leopold I of Austria to a Spanish princess, Infanta Teresa Magarita. In 1722 the diamonds into the Wittelsbach family or clan, a family of European royalty. Diamonds auctioned at Christie's in London was Bought Laurence Graff (69) with £ 16.4 million, or about Rp244, 7 M.

Blue Diamond

LONDON - A rare diamond that is expected to create a new world record price per carat of diamonds in an auction in May exhibited in London.

Smaller than penny circles, diamonds worth estimated 5.8 to 8.5 million U.S. dollars (approximately USD 92.2 billion), according to estimates seller. This 7.03-carat ring is one of the very few blue diamonds in the world.
This diamond found in South Africa last year and is now on display at Sotheby's, Mayfair, London, England, until Tuesday (28 / 4). Then the diamonds will be auctioned in Geneva on 12 May Gems are cut from a rough precious stone weighing 26.58 carats, was found in 2008 at the Cullinan mine.
The mine also produces diamonds Great Star of Africa is now 530 carats adorn the royal crown. Rocks Institute of America (GIA) provides a perfect grade for clarity on the blue diamonds, the highest class that can be given on a piece of precious stones.
Cathy Malins, of Petra Diamonds, a diamond mining company that is, describe the discovery of this diamond as it is very unique. He said, "At our mines in South Africa we are mining for about 2-3 million tons of stone per year. We'll be lucky enough to be a piece, or two, blue diamonds from this mine. In short we do not know when it might be a diamond of this kind anymore. "
Rare type of precious stones in the world is because of this little area that could be mined for blue diamonds. These stones have a blue color as metallic chemical called boron, which can absorb light in color, appeared during the formation of rocks.

Target record
The auctioneer said, despite the current economic situation is less good, the supply of buyers around the world began to flood. David Bennett, head of auction house Sotheby's Europe and Middle East, said, "Things like this will be bought by someone who wants pocketed something not owned one in the world, someone who wants something very, very beautiful and rare." "I'm very optimistic even in markets such as the scarcity of diamonds now this will make it sell. "
In May 2008, a 3.73-carat diamond sold auction house Sotheby's for $ 1,328,444 U.S. dollars, a new world record for price per carat gems in the auction. If diamonds are sold according to the estimated 8.5 million dollars worth, then the diamond will break the world record. The buyer will also have the right to name the diamond.