D&D Jewellery – Knowledge of Diamond

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Knowledge of Diamond:

How can we identify the value of each Diamond? We can use the 4Cs of Diamond Quality, which is created by Gemological Institute of America to identify the quality and value of each diamond. 4Cs included the carat weight, clarity, color and cut.

1) Carat Weigh

Diamond carat weight is the measurement of how much a diamond weighs. A metric “carat” is defined as 200 milligrams. Each carat can be subdivided into 100 ‘points.’ This allows very precise measurements to the hundredth decimal place. A jeweler may describe the weight of a diamond below one carat by its ‘points’ alone. In fact the cut, color and clarity can be influence the price and value of diamond , no matter the diamond is the same “carat”. So we cannot only use the “carat” to define value while you buy diamond. Carat

2) Cut

Diamonds are renowned for their ability to transmit light and glisten so strongly. We often think of a diamond’s cut as round, emerald, pear of shape. A diamond’s cut is crucial to the stone’s final beauty and value. Round shape is a popular and favourite one in market, it is because the meaning of round shape is eternal and romantic love. So round shape always designed as engagement rings with a slightly higher price. To determine the cut grade of the standard round brilliant diamond – the shape that dominates the majority of diamond jewelry – GIA calculates the proportions of those facets that influence the diamond’s face-up appearance. These proportions allow GIA to evaluate how successfully a diamond interacts with light to create desirable visual effects such as: Brightness: Internal and external white light reflected from a diamond Fire: The scattering of white light into all the colors of the rainbow Scintillation: The amount of sparkle a diamond produces, and the pattern of light and dark areas caused by reflections within the diamond GIA’s diamond cut grade also takes into account the design and craftsmanship of the diamond, including its weight relative to its diameter, its girdle thickness (which affects its durability), the symmetry of its facet arrangement, and the quality of polish on those facets. The GIA Diamond Cut Scale for standard round brilliant diamonds in D-to-Z diamond color range contains 5 grades: 1) Excellent 2) Very Good 3) Good 4) Fair 5)Poor ＊The grades of Excellent and Very Good are better to consider

3) Color

The diamond color evaluation of most gem-quality diamonds is based on the lack of color. A perfect diamond has no hue, like pure water, and consequently, a higher value. It means that diamond ‘D’ ‘E’ and ‘F’ is the most valuable diamond. GIA’s D-to-Z diamond color-grading scale measures the level of colorlessness by using a masterstones stones to compare the diamond that under controlled lighting and precise viewing conditions to established the color value. color-chart

4) Clarity

Natural diamonds are the result of carbon exposed to tremendous heat and pressure deep. The process can result in a variety of internal and external characteristics called ‘inclusions’ and ‘blemishes’. Evaluating diamond clarity involves five characteristics, included the number, size, relief, nature and position. As well as how these affect the overall appearance of the stone. While no diamond is perfectly pure, the closer it comes, the higher its value. The GIA Diamond Clarity Scale has 6 categories, it divided to 11 specific grades: -Flawless (FL) No inclusions and no blemishes visible under 10x magnification -Internally Flawless (IF) No inclusions visible under 10x magnification -Very, Very Slightly Included (VVS1 and VVS2) Inclusions so slight they are difficult for a skilled grader to see under 10x magnification -Very Slightly Included (VS1 and VS2) Inclusions are observed with effort under 10x magnification, but can be characterized as minor -Slightly Included (SI1 and SI2) Inclusions are noticeable under 10x magnification -Included (I1, I2, and I3) Inclusions are obvious under 10x magnification which may affect transparency and brilliance clarity-chart [/vc_column_text][/vc_column][/vc_row]