David Cowley - Articles

Popularity
260

World Famous Diamonds 3
The Centenary was found on July 17th, 1986 at the Premier Mine. Only a handful of people knew about it and all were sworn to silence. On March 11th, 1988, the centenary celebrations of De Beers took place in Kimberly and a banquet was held to close the Kimberly Mine also known as the Big Hole. Over 400 people were in attendance. Read
By: David Cowley | 05/06/2008 | Jewelry
Popularity
292

Facts About Man Made Diamonds
De Beers was founded in South Africa in 1888 and today is the largest producer and seller of diamonds. Almost from the beginning the De Beers company has had a strangle hold on the diamond industry and a huge advertising budget. Diamonds are not as rare as the advertiser would have you to believe. De Beers keeps a huge stockpile of diamonds and tightly controls supply. Read
By: David Cowley | 05/06/2008 | Jewelry
Popularity
227

Why are Some Diamonds Colored
The Gemological Institute of America (GIA), the American Gem Society (AGS), and the International Gemological Institute (IGI) are the three most widely known and respected diamond grading laboratories in the world. Each of the grading laboratories have developed a very similar nomenclature for identifying the 4 C's of diamonds. Read
By: David Cowley | 05/06/2008 | Jewelry
Popularity
224

World Famous Diamonds 2
Also called The Little Sancy is a rounded pear shaped and weights about 34 carats and has been confused with its counter part called The Sancy which is 54 carats. This diamond was bought by Prince Frederick Henry of Orange the grandfather of King Fredrick I of Prussia, who died in the year 1647. The Beau Sancy is now in the possession of the head of the house of Hohenzollern, Prince Louis-Ferdinand of Prussia, grandson of William II, the last Emperor of Germany. Read
By: David Cowley | 05/06/2008 | Jewelry
Popularity
260

World Famous Diamonds 1
The first recorded history of the Agra Diamond in 1526 when Babur the first Mogul emperor was reported to have received the diamond from the family of the slain Raja of Agar. Many stories surround the diamond from the mid 1500 to 1891 including one story where a horse was forced to swallow the diamond so it could be smuggled out of India to England. None of the stories can be validated until 1891 when the diamond was documented to be in the position of Edwin Streeter. Read
By: David Cowley | 05/06/2008 | Jewelry
Popularity
251

Facts About Green Diamonds
A natural diamond coming into contact with a radioactive source at some point during its lifetime causes some diamonds to develop a green coloration. The time required may be as much as a million years or longer. Green diamonds of this nature are very unique. Read
By: David Cowley | 05/06/2008 | Jewelry
Popularity
307

Facts About Yellow Diamonds
Yellow diamonds were once thought to be inferior. Paler yellows, such as canary yellow, are more common but are not as desirable as their darker counterparts. Intense fancy yellow diamonds are the most rare and valuable of the yellow diamonds. A tiny .25-carat yellow diamond can be priced as high as 10,000 dollars depending on its clarity and cut. Several larger 6 carat Fancy Vivid Yellow diamonds have just recently been sold for $57.000 per carat. Read
By: David Cowley | 05/06/2008 | Jewelry
Popularity
292

Facts About Pink Diamonds
he pink diamonds comes in shades ranging from a pastel rose, such as the Pink Orchid to intense purple-reds of the Moussaieff Red, and the price is determined by the intensity of the color. Pink diamonds have sold for up to $1,000,000 a carat. Unlike the Type I diamonds that derived their color from impurities imbedded in the diamond, Pink diamonds are considered a Type II and get their color from a process known as Plastic Deformation. Read
By: David Cowley | 05/06/2008 | Jewelry
Popularity
292

Facts About Champagne Diamonds
The majority of the Champagne color diamonds are found in the Ragged Ranges in the Kimberley region of Australia. In this remote corner of north west Australia is the largest diamond mine in the world the called Argyle Diamond Mine. Diamonds were discovered here in October of 1979. Read
By: David Cowley | 05/06/2008 | Jewelry
Popularity
224

The Facts About Blue Diamonds
Diamonds are composed of carbon atoms that have been subject to extreme pressure and heat. If the diamond contains no impurities then the color will be crystal clear. Nature rarely creates anything that does not have any impurities in it. Most diamonds will contain some amounts of nitrogen atoms. Read
By: David Cowley | 05/06/2008 | Jewelry