Natural Black Diamond - Orlov Diamond
Colored Diamonds, do not include clear, colorless diamonds. Diamonds which display a range of colors can be classified into the following 5 distinct categories:
1. Natural Colored
2. Painted Diamonds
3. Foiled Diamonds
4. Treated Diamonds
5. Synthetic Diamonds
This page provides information on Diamonds that are Naturally colored, meaning, diamonds that have not been colored or color enhanced in any way.
For information on organic gems, like Natural Pearls - Click Here...
Facts About Diamonds say, that a natural colored diamond is the only gemstone that combines the brilliance, hardness and purity of diamond with COLOR. Fancy diamonds should have a body color strong enough to be attractive not just lightly tinted.
Only 2% of all tinted diamonds actually qualify as fancy diamonds. Approximately one carat of diamond fancies are produced for every 2,500 carats of mined diamonds.
Yellow diamonds are the most common, then followed by brown, black diamonds and light green. Less common are rose, violet, pink diamonds and blue.
Information about the Hope Blue Diamond can be found Here...
Brown diamonds are mainly used for industrial purposes and are less expensive than colored and colorless diamonds.
The term "black diamonds" is sometimes used to describe the high quality smoky topaz colored austrian crystals found in WEISS Costume Jewelry.
Black diamonds mainly come in grays, not truly black. Fancy black diamonds of fine color and clarity are rare. They have a magnificent sub-metallic luster, some look like black wax. Many opaque black diamonds are of a crypto-crystalline nature and nearly impossible to polish.
Only the table of the stone of these black diamonds are polished and then the diamonds are bezel set. The black color most often results from an abundance of black inclusions. If the reflections however are green under intense transmitted light or reflected light in all likelihood the diamond had been treated.
Black diamonds are not uncommon in nature however they are not commonly seen in jewelry because of their tremendous resistance to the grinding wheel. Historically, black diamonds have been used in Antique India Jewelry, Pakistan, Iran, Borneo and Portugal, mostly for use in mourning jewelry.
The largest black carbonado diamond (not classified as a black diamond in the strict sense) was found in Bahia, Brazil in 1895 and weighed 3,150 carats! This makes this natural black diamond larger than the Cullinan diamond found in 1905 which weighed 3106 carats.
But the most famous of all black diamonds, its history still shrouded in diamond mystery is the strange Black Orlov Diamond, also known as The Eye of Brahma Diamond. One of the only diamonds that we have researched that has decreased in value over the years.
The Black Orlov was owned by Charles F. Winson, New York City gem dealer, who valued it at $150,000. In 1969, the stone was sold for $300,000. It was resold in 1990 at Sothebys for $99,000. On October 11th, 2006, the necklace containing the stone figured as lot #433 in a Christie's Magnificent Jewels sale where it sold for $352,000. Source: Diamonds - Famous, Notable and Unique by GIA, the Gemstone Forecaster, and the Cartier archives.
Return to the top of Colored Diamonds
Return to Antique Jewelry Investor Home Page
Aug 19, 19 05:58 AM
A Collection of Rare & Unusual Cameos
Aug 06, 19 04:44 AM
Passengers on the Titanic - their memory lives on...thanks to the Edwardian Jewelry recovered from the Titanic ship
Jun 24, 19 07:59 PM
Small round coral (?) Stone with several small round diamonds and one triangle shape diamond stamped k18 very beautiful and obviously old.