Diamond buying entails the imbibing of valuable information from authentic sources. Without a comprehensive knowledge, it's difficult to make a genuine purchase. Though this special stone is identified by the name “diamond” yet, it has so many variations in terms of colors, clarities, carat, and cuts that each diamond looks different from the other. Of all the 4 C’s of a diamond, one that makes a significant impact on its appearance is the color. In fact, after cut, color is regarded as the most important characteristics which should be taken into consideration when selecting a diamond.
Diamonds come in an array of color and hue that one can possibly imagine. You will come across diamonds of yellow, gray, red, brown, orange, blue, green, pink, purple, black, and white. But the diamonds that range from colorless to light yellow or brown are identified within the normal color range. The evaluation of a diamond color is determined by the absence of color. A perfectly colorless, bright white and transparent diamond is recognized as the most structurally perfect and chemically pure diamond. They are akin to a drop of pure water. This is because it is a colorless diamond that bounce back light in a spectrum of hues which is referred to as “fire”. In other words, it allows the maximum possible deflection of light which in turn maximizes brilliance.
Even a slight trace or hint of color in a diamond will hinder its ability to reflect light and have a negative effect on the sparkle of the stone. They make a dramatic difference in the value of the diamond too. The less color in a diamond, the more its ability to reflect light and hence the more will be its value. It is interesting to note that the colorless diamonds and the natural fancy colored diamonds like yellow, blue, pink or red are extremely rare and hence the most expensive.
When it comes to diamond color grading, the GIA’s D-to-Z diamond grading system is the most widely accepted and widely followed one. The GIA’s diamond color grading scale commences with D and ends with Z where the letter D represents ‘colorless’ and Z represents ‘light yellow’. This grading system determines the degree of colorlessness of the stone through a comparison that is done under a controlled environment and against a known set of master stones. It is usually evaluated face down and against a pure white surface as that makes the body color of the diamond more prominent.
Some Interesting Facts:
1. It is difficult to detect any color once the diamond is set in a ring and placed in a colored surrounding. When set in a ring, an H colored diamond that falls in the category of near colorless will look similar to a D grade diamond which is colorless. A white metal setting may make the yellow tinge appear more prominent than a yellow gold setting. Hence, a diamond’s color should be detected when it is ‘loose’.
2. The fancy colored diamonds like pink, blue, yellow, red, etc. have a different grading scale.
3. Of all the diamonds, less than 1% are colorless and it is because of this rarity that they are tagged the most expensive.