DIAMOND SM56LE-SL DRIVER

IDC clarity grading is by examination using a 10x achromatic, aplanatic loupe in normal light. The degree to which this color and relief is noticeable affects the clarity grade of the diamond. These numbers grades correlate almost exactly with the GIA system, but with some differences. The difference between one shade and the next is very subtle,so the grading is done under controlled light by comparing a stone to masterstones stones of estabilished color value. From Wikipedia, the free encyclopedia. Those that do not have a visible inclusion when the gem is examined approximately 6 inches from the naked eye are known as “eye-clean”, [12] although visible inclusions can sometimes be hidden under the setting in a piece of jewelry. The fifth clarity factor which is assessed is the color and relief of clarity characteristics.

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When diamonds are graded, they are magnified at 10x power. These numbers grades correlate almost exactly with the Ssm56le-sl system, but with some differences. Such diamonds are sometimes called ” fracture filled diamonds”. Retrieved 20 August Color Clarity Cut Carat Weight. These grading agencies base their clarity grades on the characteristics of inclusions visible to a trained professional when a diamond is viewed from above under 10x magnification.

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Less significant inclusions are ignored for the purposes of setting the grade; however, they may still be plotted onto a diamond plot chart.

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The second clarity factor which is assessed is the number of clarity characteristics.

The Clarity scale has 11 specific grades: External characteristics exclude the diamond from the Flawless category. Retrieved 22 November Diamond clarity is the quality of diamonds that relates to the existence and diqmond appearance of internal characteristics of a diamond called inclusionsand surface defects, called blemishes. The grader views the diamond for the first time through the table, studying the culet area of the sm5le-sl for inclusions. Fluorescence Fluorescence is an effect that is seen in some diamonds when they are exposed to long-wave ultraviolet light.

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If a stereo binocular microscope has been used, a final assessment using a 10x loupe is performed before the final judgment is made on the clarity of the stone. Inclusions become less visible when they are positioned under the crown facets, or near the girdle of the stone. The degree to which this color and relief is noticeable affects the clarity grade of the diamond.

The GIA Laboratory uses as standard equipment binocular stereo microscopes which are able to zoom to higher magnifications. In addition, as synthetic diamond technology improves and distinguishing between natural and synthetic diamonds becomes more difficult, inclusions or blemishes can be used as proof of natural origin.

Diamonds become increasingly rare when considering higher clarity gradings. From Wikipedia, the free encyclopedia. These inclusions may often be more easily seen from the pavilion side of the diamond than from crown side of the diamond.

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Colored inclusions invariably show diamobd and are more easily seen. Inclusions are often difficult to see from the crown side of the diamond, and may be concealed by the setting.

Retrieved dimond September Please help improve this section by adding citations to reliable sources. By using this site, you agree to the Terms of Use and Privacy Policy. The Atlantic, Feb Generally, the more characteristics, the lower the clarity grade. Material properties Crystallographic defects Formation and surfacing.

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The renowned skill and indisputable craftsmanship of the Antwerp polishers are the worldwide synonym for the highest quality. The proportions allow to evaluate how successfully a diamond interacts with light to create several desirable effects such as: IDC loupe clean stones that have external blemishes have notations made on the grading report.

Diamond Color Diamonds are graded on a colour scale from D colorless to Z light yellowish. Firstly, the Internally Flawless grade was added, as GIA noticed that many diamonds were being aggressively cut to remove any surface blemishes, and thereby reducing the cutting quality “make” of the diamonds.

Diamonds are graded on a colour scale from D colorless to Z light yellowish.