The Four C's
All diamonds are graded using the four c's (cut, color, clarity and carat
weight) methodology. Each of these qualities are important for valuers to consider
when trying to evaluate the quality and value of diamonds and to the consumer
when trying to determine the correct stone to purchase.
Cut - This attribute
has to do much more with the way a diamond handles reflected light throughout
the stone than just the shape of it. A stone that has been cut within
exact proportions reflects light from facet to facet and then disperses it
through the top or table of the stone. There are numerous ways to cut
stones, and in diamonds the most popular is the round brilliant cut.
Color - This attribute
deals with the purity of a diamond, and a colorless stone is the best color as
far as diamonds are concerned. The effortless passage of light through a
stone afforded by a diamond with no color allows the full spectrum of colors to
be dispersed throughout the stone.
Clarity - This
attribute has to do with the internal structure of a diamond. Most stones
contain inclusions, which are natural imperfections inside the structure of the
stone. These inclusions interfere with the way the light passes through
the stone. In the rare case that a diamond is clear throughout, it is said
to be flawless.
Carat Weight - This
attribute deals with the actual size of the diamond. Taking into
consideration all the other factors that go into grading diamonds, a bigger
stone is not necessarily a better stone.
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