Emeralds have a step-cut with long, linear facets that create a “hall of mirrors” effect when reflecting light. Both of these diamonds have rectangular shapes, but they feature different cut types. Emerald and Radiant cut diamonds are a great example of the difference between cut and shape. It describes the way a diamond reflects light, not how the diamond is outwardly shaped. Examples of diamond shapes include Round Brilliant or Emerald diamonds.ĭiamond cut refers to a diamond’s facets, symmetry, and dimensions. It often holds symbolic meaning and is a form of self-expression. A diamond’s shape is considered its personality. It’s the most distinguishable feature of a diamond. Shape refers to a diamond’s outward, physical form. Diamond Cut vs Diamond Shapeĭiamond cut often gets confused with diamond shape, but they are two different things. Facets affect how a diamond reflects and refracts light but they do not determine its outward shape. What Are Diamond Facets?ĭiamond facets are the flat surfaces inside a diamond that are arranged in a geometrical pattern. Each type of cut, as well as its cut quality, will affect what a diamond looks like and how it plays with the light. There are three types of diamond cuts: step cut, brilliant cut, and mixed cut. It affects the way the diamond’s surface interacts with and catches light and determines its overall brilliance.ĭiamond cut includes cut quality and cut type. Cut refers to the arrangement of a diamond’s facets. Another reason why the round brilliant cut was chosen as the ideal engagement ring by brides.Diamond cut is one of the 4Cs of diamonds - cut, color, clarity, and carat. The shape also adds to the love and commitment symbol, perfectly capturing your relationship. The round shape, in addition to the cut, was created to give the ring a sense of warmth, empathy, and dependability. The pavilion cannot be too deep or too shallow otherwise, light will be lost through the bottom, resulting in reduced brilliance. If the table is too large, the diamond will lose too much light. If the diamond's table is too small, the stone will not reflect enough light. On the other hand, the pavilion must have eight main pavilion facets, sixteen lower girdle facets, and a culet.īut that's not all the pavilion, crown, and table must all be proportioned correctly. The diamond's crown must have one table facet, eight bezel facets, eight star facets, and sixteen upper girdle facets. To be classified as a brilliant cut diamond, a stone must have 57 facets (58 facets if it is polished with a culet). Light enters the diamond through the top and exits through the top when it is cut and polished according to Marcel's scientific calculations, giving it maximum fire, brilliance, and scintillation. As a result, the stone's table was designed mathematically to capture as much light as possible. A diamond, according to Marcel, is nothing more than a system of mirrors and windows. He spent years figuring out the ideal proportions and symmetry for a diamond to reach its full potential. Marcel Tolkowsky, a Belgian-born gemologist and mathematician, established the best way to design, cut, and polish the ideal diamond in 1919. The new cutting techniques were refined over time to ensure that the diamond's fire, scintillation, and brilliance were maximized. The diamond's culet appears to be smaller than before. Table facets have grown in size, while lower half facets and star facets have grown in length. The anatomy of a diamond has evolved over time, each step closer to achieving the ideal cut. As a result, the only characteristic of a diamond that is not determined when it is formed is its cut.īefore the great Kimberley diamond rush, which occurred after the first discovery of diamonds in South Africa in 1867, diamonds were cut and polished in a very different way than the brilliant cut diamonds that we see today. While nature determines the diamond's color, clarity, and carat weight, the diamond's cut is in the hands of a master craftsman. But what is a brilliant cut diamond, and why is it thought to be the best cut?īefore the GIA (Gemological Institute of America) established the 4C's (Color, Clarity, Cut, and Carat Weight) in 1939, there was no universal grading system for determining the quality and value of a diamond. As a result, the diamond cutting process has undergone significant changes over time. The diamond was created over six centuries and by many craftsmen from one generation to the next. The round brilliant cut diamond is the most popular diamond shape for an engagement ring today. Have you heard the phrase "Rome wasn't built in a day"? The same is true when it comes to creating the ideal diamond cut.
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