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GIA
Gemological Institute of America
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EGL
European Gemological Laboratory
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JBT
Jewelers Board of Trade
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AGS
American Gem Society
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DHC
Diamond High Council
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IGI
International Gemological Institute
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Diamond Education
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Cut
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Clarity
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Color
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Carat
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Cut
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Cut refers to the angles and proportions a skilled craftsman creates in
transforming a rough diamond into polished diamonds. Nature determines so much
about a diamond, but it takes a master cutter to reveal the stone’s true
brilliance, fire and ultimate beauty. Based n scientific formulas, a well-cut
diamond will internally reflects light from one mirror ;like facet to another
and disperse and reflect it through the top of the stone. This results in a
display of brilliance and fire.
Diamonds that are cut too deep or too shallow lose or leak light throught the
side or bottom, resulting in less brilliance and ultimately, value.
Cut also refers to the shape of a diamond- round, marquise, pear, or heart
shaped. Since a rounds diamond is symmetrical and capable of reflecting nearly
all the enters, it is the most brilliant of all diamond shapes. Cut and cutting
style work in harmony to create a Diamond’s brilliance.
Cutting style is categorized into three basic types: Step -cut, brilliant -cut,
and mixed-cut. The difference among theses three types is the faceting
arrangement of each style.
How a diamond handles light:
It is the cut that enables a diamond to make the best use of light.
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- When a diamond is cut to good proportions, light is reflected from one facet to
another and then dispersed through the top of the stone.
- If the cut of the diamond is too deep, some light escapes through the opposite
side of the pavilion.
- If the cut is too shallow, light escapes through the pavilion before it can be
reflected.
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View all Cuts of a Diamond:
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