Friday, September 9, 2011

Fact About Diamond !!!

Diamonds were first formed billions of years ago some 100 miles beneath the earth's surface through a process of tremendous pressure and temperatures of 2000 - 3000 degrees Fahrenheit. Volcanic activity brings diamond crystals much closer to the earth's surface.

To produce a single one-carat diamond, 250 tons of earth will be mined.

Gem-quality diamonds are made up from less than 20 percent of the diamonds mined worldwide.

The first written notation of precious diamonds dates back to around 500 B.C.

In their purest state, diamonds are brilliant and entirely colorless.

Diamonds are found in a variety of colors. Blue and pink diamonds are among the rarest, and yellow and brown as among the most common.

The diamond is the hardest natural substance found on the earth.

The diamond is rock hard and virtually fireproof. In order for a diamond to burn, it must be heated to one-thousand, two-hundred, and ninety-two degrees Fahrenheit.

In one-thousand polished diamonds, only one will weigh more than one carat.

Although the U.S. accounts for less than one-percent of total global gemstone productions, America buys more than half of the world's total gem quality diamonds - accounting for the world's largest diamond market.

Australia accounts for producing the most diamonds in volume.

The Crater of Diamonds State Park in Arkansas is the worlds only diamond mine open to the public - this is a dig-for-fee operation for tourists and rock enthusiasts.

Since as far back as 1906, there have been more than 70,000 diamonds discovered in The Crater of Diamonds State Park in Arkansas - this includes the 40.23 carat "Uncle Sam Diamond" - the largest diamond of its kind ever found in the U.S discovered in 1924.


Pink Diamonds 
The pink diamond is the world's most rare and valuable diamond.The Argyle mine is the world's foremost source of unrivalled intense pink diamonds, producing 95% of the world's supply. However, an extremely small proportion of Argyle Diamonds production is Pink colour, in fact less than one tenth of 1% is classified Pink. 

White Diamonds 
White diamonds are produced by mines all over the world in a wide variety of shapes and sizes.The white diamonds recovered from the Argyle mine are particularly brilliant and of high quality.

Champagne Diamonds

Champagne diamonds are naturally coloured diamonds that are produced in a wide range of colours from light straw to rich cognac.
The 4C's of colour, cut, clarity and carat weight apply to coloured diamonds just as they do to colourless diamonds except the intensity of colour, not lack of it, plays a greater part in the valuation.

Pink Champagne Diamonds 
Attractive champagne diamonds with secondary pink colour are also available and command a higher price per carat than champagne diamonds. These stones display slight to bold flashes of pink in their fire.

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