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Diamond Cut: Understanding Facets, Shape & Brilliance

As you select the jewelry, the diamond cut of the diamond has an extremely big impact on how it looks and how it attracts people to it. A diamond cut will impact on how it sparkles as it shines because it is dependent on the design of the cut and how it reflects inside to make it sparkle. Every kind of diamond jewelry has a feel associated with it that attracts all forms of love.

What is Diamond?

A diamond would be counted among the most costly and beautiful stones that are known to mankind. These stones are produced in the Earth's mantle, which would be the middle part of the Earth and would be described as a region of high temperature and pressure conditions, and these stones would be one of the hardest natural objects. Diamonds would comprise clear carbon, and the formation and nature of these stones make them one-of-a-kind.


What are Diamond Facets?

The factors that comprise diamonds are the flat surfaces that are polished and crafted in such a manner as to reflect the aims of making it shine and look beautiful. These surfaces also act as mirrors that reflect and refract the light passing through the diamonds. The phenomenon of diamonds being shiny or sparkling is based on the factors of its facets, its shape, and its cutting capacity. The diamonds that are well-cut are those that have maximized the potential of reflecting light by making it shine and look beautiful.

The 4Cs in Diamond

Every diamond receives a universal scale based on which the quality of the diamond is judged. These universal scales are known as the “4Cs.” These include cut, color, clarity, and carat weight.

  • Cut: The maximum light reflection power, brilliance, or sparkle of this diamond.
  • Color: This assesses the diamond for a lack of color.
  • Clarity: It assesses the inclusions and external flaws of diamonds, as well as their clarity or purity.
  • Carat Weight: This assesses the size and value of them.

Diamond Cut vs Diamond Shape

What It MeansDiamond CutDiamond Shape
DefinitionHow well the diamond is cut to reflect light.The outline or form of the diamond.
PurposeTo maximize sparkle and brilliance.To define the diamond’s overall look and style.
Effect on SparkleHas a major impact on how much the diamond shines.Has little effect on sparkle by itself.
AppearanceAffects how bright and lively the diamond looks.Affects how the diamond looks when viewed from the top.

What are Diamond Cut Grades?

The ring cut grade is referred to as an assessment used in assessing its degree or nature and extent concerning its shine, brilliance, or beauty. This assessment is dependent upon very vital issues, including its proportions, symmetry, and ability or power to reflect light through its polished facets. Diamonds that are well-cut maximize their ability to reflect light from the top, making it very bright or attractive. A deep cut or very shallow cut will allow light to escape from the sides or bottom of the diamond, resulting in a dull appearance.

Diamond Cut Grade Chart

Cut GradeWhat It MeansHow It LooksOverall Impression
ExcellentCut to reflect nearly all incoming light.Very bright with maximum sparkle.Best choice for brilliance and beauty.
Very GoodReflects most light with minor loss.Bright and lively appearance.Great balance of beauty and value.
GoodReflects a fair amount of light.Some sparkle, but less brilliance.Acceptable appearance at a lower cost.
FairLight escapes through the sides or bottom.Duller and less lively.Noticeably reduced sparkle.
PoorLight reflection is very limited.Dim and lifeless appearance.Lowest visual appeal.


How Diamond Cut Quality Is Determined

The GIA is the scale that measures the quality of the cut of the diamond and its relationship with light. This scale was created by the Gemological Institute of America and is used mainly on round-cut diamonds. The scale judges the cut of the diamond based on its proportion, symmetry, polish, brilliance, and fire. The five grades given by the GIA are Excellent, Very Good, Good, Fair, or Poor. The scale uses complex models to analyze and directly observe the diamond in order to determine its grade.
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