Diamond Gemstone

A Diamond Gemstone is one of the best known and most sought after gemstones. Diamonds have been known to mankind used as decorative items since ancient times, some of the earliest references can be traced to India.
The hardness of diamond and its high dispersion of light giving the diamonds its characteristic fire make it useful for industrial applications and desirable as jewelry. Diamond are such a highly traded commodity that multiple organizations have been created for grading and certifying them based on the four Cs, which are carat, cut, color and clarity. Other characteristics, such as presence or lack of fluorescence, also affect the desirability and thus the value of a diamond used for jewelry. Perhaps the most famous use of the diamond use in jewelry is in engagement rings, which became popular in the early to mind 20th century have been used to symbolize engagements since at least the 15th century. The diamond's high value has also been the driving force behind dictators and revolutionary entities, especially in Africa, using slave and child labor to mine blood diamonds to fund conflicts.

Color of Diamond Gemstones
The finest quality as per color grading is totally colorless, which is graded as "D" color diamond across the globe, meaning is absolutely free from any color. The next grade has a very slight trace of color, which can be observed by any expert diamond value/grading laboratory. However when studded in jewellery these very light colored diamonds do not show any color or it is not possible to make out color shade. These are graded as E color or F color diamonds
Diamonds which show very little traces of color are grade as G or H color diamonds. Slightly colored diamonds are graded as I or J or K color. A diamond can be found in any color in addition to colorless. Some of the colored diamonds, such as pink, are very rare.
A chemically pure and structurally perfect diamond is perfectly transparent with no hue, or color. However, in reality most gem sized natural diamonds are imperfect. The color of a diamond may be affected by chemical impurities and structural defects in the crystal lattice. Depending on the hue and intensity of a diamonds coloration, a diamonds color can either detract from or enhance its value. For example, most white diamonds are discounted in price as more yellow hue is detectable, while intense pink or blue diamonds such as the Hope diamond can be dramatically more valuable. The Aurora Diamond Collection displays a spectacular array of naturally colored diamonds, which occur in every color of the rainbow.
Most Diamonds used as gemstones are basically transparent with little tint, or white diamonds. The most common impurity, nitrogen, replaces a small proportion of carbon atoms in a diamonds structure and causes a yellowish to brownish tint. This effect is present in almost all white diamonds, in only the rarest diamonds is the coloration from this effect undetectable. The GIA has developed a rating system for color in white diamonds, from "D" to "Z" which has been widely adopted in the industry and is universally recognized, superseding several older system. The GIA system uses a benchmark set of natural diamonds of known color grade, along with standardized and carefully controlled lighting conditions. Diamonds with higher color grades are rarer, in higher demand, and therefore more expensive, then lower grades.