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<\/a><\/p>\nThe cut of a diamond is crucial to its appearance and value and is the most complex and technically demanding identification standard among the 4C diamond standards.<\/p>\n
Many people misunderstand diamond cut as the shape of the diamond (round, heart, oval, marquise, pear). A diamond's cut grade depends on how its facets interact with light. The evaluation of cut includes \"cut proportion\", \"symmetry\" and \"polishing\".\nAn excellent cut can create a high refractive index, making the diamond shine brightly.<\/p>\n
Different diamond grading agencies have different classifications of cut grades.<\/p>\n
GIA is cut into five grades<\/strong><\/p>\n Excellent\uff0cEX<\/strong>: There are only slight bad facet shapes or hard-to-find polishing lines, which do not affect the light reflection of the diamond at all. It has uniform light and dark areas and extremely colourful fire reflections, and the polishing or symmetry is excellent. Excellent, the other rated it as excellent.<\/p>\n Very Good\uff0cVG<\/strong>: There are only slight polishing lines or inconspicuous surface features, which do not affect the reflective ability of the diamond. It has very few broken light and dark areas, good fire reflection, and polishing or symmetry is excellent or one of them is excellent.<\/p>\n Good (G)<\/strong> : Some transparent polish lines can be seen on the front, many small surface features, facet asymmetry or proportional deviations at the base of the crown, and large dark areas on the front.<\/p>\n Fair (F)<\/strong> : There are obvious transparent or white mist-like polishing lines on the front, obvious surface features or proportional deviations, no obvious contrast between light and dark on the front, and the overall appearance is dull.<\/p>\n Poor<\/strong> : Surface features that reduce the transparency of the diamond and obvious symmetry deviations.<\/p>\n IGI is divided cutting into six levels. Above Excellent and EX, there is an additional level of Ideal, with Ideal as the top cut.<\/p>\n The cut of a diamond directly affects its<\/strong><\/p>\n Read More:<\/p>\n Diamond clarity refers to the evaluation of diamond surface flaws or diamond internal characteristics, foreign crystals or diamond crystals that were included in the original ore when the diamond was formed, structural detects produced during the growth process, or external detects produced during artificial cutting. They are all called; the clarity characteristics of general gem-quality diamonds are invisible to the naked eye. Under 10x magnification, they are determined according to size, number, position, nature and reality. Determines the clarity grade of a diamond.<\/p>\n Read More:<\/p>\n\n
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\n<\/a><\/li>\nClarity<\/h2>\n
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\n<\/a><\/li>\n<\/ul>\nColor<\/h2>\n