Undoubtedly, the best gem since the dawn of mankind is the diamond. Because of its brilliance, it is called the "King of Gemstones" and is the hardest mineral on Earth. (FOA, p.50) Diamond made of carbon. This is 99% of carbon and less than 1% of micro nutrients. Because diamonds are ostensibly a commodity, most people value them for their cultural, psychological, and economic luxury values. Consumer preference prevails as the old chestnuts have disappeared.

People naturally tend to associate their emotions with luxury purchases. This can also be a great reason to buy a diamond as it is a combination of the customer's emotions and motivations. Of course, buying diamond jewelry is a real status symbol. All the cleanliness talked about four CS assessments, the rest are carats, colors and cuts. Carat weight measures the mass of a diamond.

A carat is defined as 200 milligrams (about 0.007 avoirdupois ounces). Target units such as at least one-hundredth of a carat (0.01 carat or 2 mg) are usually only used for diamonds weighing one carat. All other things being equal, carat value increases with carat weight because larger diamonds are rarer and must be used as gemstones.

Clarity can also be a measure of a diamond's internal imperfections called inclusions. Inclusions are also small cracks that appear pale or cloudy or structural defects such as crystals or other diamond crystals in the rim material. The number, size, color, relative position, orientation and visibility of inclusions can affect the relative transparency of a diamond. According to the color gradation, the main effective quality is completely colorless and globally graded as D-color diamonds, making it completely colorless.

The following grades have very bright color prints that are easily found in professional diamond appraisers/grading labs. However, these very brightly colored diamonds set in gemstones do not display any color or produce any tint. It is classified as an E color or F color diamond. Diamonds that show small signs of color are classified as G or H color diamonds. Light-colored diamonds are classified as I or J or K color. Diamonds are often found in any nearly colorless variation.

Color diamonds like pink are very rare. Diamond cutting is the art and science of making gem-quality diamonds from processed gemstones. A diamond cut describes how a diamond is formed and polished, from its initial rough stone appearance to its final gemstone proportions. Diamond cut describes the standard of craftsmanship and the angle at which the diamond is cut.

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