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New Articles

7 Gem cutting - how it has changed over the years (50% of the original rough diamond is lost during
How does a lump of mineral or crystal become a dazzling diamond, ruby or sapphire? It's an amazing process called gem cutting or lapidary and makes all the difference in the final value of the stone. It was developed first in Venice in the...

Diamond History
Diamond history varies greatly depending on your source of documentation, as diamond history is as rich in myths and folklore as it is in physical facts and records. Diamond history is one filled with mythical stories, such as one where...


Colored Diamonds



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Color Treated Diamonds

Many people are starting to favor the fancy, vivid colored diamond gem stones over the traditional transparent, or white, diamond. Some diamonds are found in their natural colors when they are mined, others become colored by gemologists and jewelers during a treatment process. In order to make them more affordable to the average consumer, companies have begun color treating diamonds of lower grades in order to take a less desirable yellow or brownish tinted diamond and make it into a beautiful, brightly colored diamond.

Colored diamonds can be treated by a process called irradiation, which uses a high heat system to alter the color of a diamond. Other diamonds are treated by painting.

Fancy Colored Diamonds

While many diamonds are inspected and valued based on their colorless qualities, there are people who prefer the fancy colored diamonds that come in vivid hues of greens, yellows, reds, pinks and all the different colors in between.

Some colored diamonds are that way naturally. If a diamond has nitrogen in it, it often has a yellow tint to the stone. If the gemstone has been effected by radiation, the gem may turn green.

Other colored diamonds have been treated to obtain their color, and this allows people with lower budgets to purchase the fancy colored diamonds. Gemologists have found ways to alter the colors of diamonds to get any shade or hue desired.

The grading process for colored diamonds is slightly different than that of the transparent diamond. First, a colored diamond is


Today's Article

Diamond Grading Reports
You've been told that having a certificate or a diamond grading report is important, and as a responsible consumer, you get one - unfortunately, you probably won't understand a word of what is on that diamond grading report,...

graded based on the primary hue, the blue or pink or red color that makes up the majority of the diamonds color. Second, they are graded based on the intensity of that color. A very intense, naturally colored diamond is more rare than a less intense diamond, and therefore more expensive. A treated diamond will cost less than a naturally colored diamond in most instances.

Synthetic Diamonds

Most diamonds are found and mined by miners, but more recently, scientists have come up with ways to create synthetic diamonds. While a synthetic diamond is still a "real diamond", they are created within a laboratory instead of by nature in a mine.

Colored Diamond Names

Because fancy colored diamonds come in so many different shades, it can sometimes be difficult to interpret the name of the diamonds color. Often, you'll find two colors labeling the shade of a diamond, such as greenish blue. Each name has a primary color description, and some have a secondary color description. If a diamond is called "blue diamond", you can tell it will be a blue shaded diamond gemstone. If the diamond is called "greenish blue", you may wonder what that means. Is the diamond blue, or is it green? The color that is described with the "ish" at the end is considered the secondary color, and the other color, in this case blue, becomes the primary color. So a greenish blue diamond is mostly blue, with specks of green seen throughout the stone. If you come upon a diamond labeled "brown red", then the diamond will have equal amounts of both colors seen through the stone.

 

Today's #1 Resources

22 Blue Heart Diamond
There is a spectacular diamond in the Smithsonian Collection called the Blue Heart Diamond. Fans of the movie Titanic might think the "Heart of the Ocean Diamond" was based on this stone, and it may have been! However, this diamond hasn't...

5 Why are most minerals not popular as gems?
There are millions of minerals that exist on the earth, but few of them are prized as gems and used for adornment. Many of them aren't in colors that are usually highly prized for jewelry. Or they're not able to be cut and polished to be...

 

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Diamonds worth 2.6 million dollars (2.1 million euros) have been stolen from the safe of a Namibian polishing company partly owned by diamond giant De Beers, an official said Wednesday.
Diamonds worth $2.6m have been stolen from the safe of a Namibian polishing company partly owned by diamond giant De Beers.
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