27 Jan 12 Precious Colored Diamonds
A diamond is the world’s exceptionally precious gemstone, but the beauty of colored diamonds is something which every gemstone might crave for. Being the most admirable and rare, colored diamonds are the dream of every investor, collector and connoisseur. It is the most sought after gemstone and an investment of a lifetime. An interesting fact about a colored diamond is that it is the most rarest among 10,000 carats of diamonds. In simple words, only 1 carat are colored out of 10,000 carats.
These fancy diamonds are available in vibrant red, blue, green, purple, yellow and so many other hues. Important factors to be considered while grading colored diamonds are their fancy & vividness, which depends on their color and saturation. The beautiful colors of these diamonds are a result of presence of trace elements within the carbon crystal structure of a diamond.
Common colors found are mentioned below
Yellow : When nitrogen is present as an impurity in the crystal structure of diamond, it appears as yellow color.
Blue and grey : The presence of boron (hydrogen) results in formation of this color.
Green : Green color is due to the ‘vacancy color center’ phenomenon.
Gemology defines it as the vacancy in the atomic structure of carbon.
Pink, mauve,brown : These colors are created by plastic distortion.
In other words, due to disfigurement of the internal frame of the diamond.
The rarity of the colored diamonds is marked by the fact of their 1 percent presence amongst the world’s total diamond. Hence, they can be aptly addressed as priceless. Red is the most rare color found in diamonds and because of rarity, diamonds undergo HPHT treatment- or the High Pressure High Temperature treatment to form color. In this treatment, diamonds are put under high pressure and high temperature to transform the crystal structure and create brown diamonds colorless and diamonds with nitrogen into a deep yellow-green color.
Diamond Jewelry Manufacturers & Suppliers : http://www.indianindustry.com/diamondjewelry/
