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Windle's Jewelry Online > Knowledge Center>  The Four C's
    The Four C's of Diamonds
Updated 07/07/2007
Cut

Many people confuse cut with the shape of a diamond.  Diamonds are cut into a
number of shapes, depending on the nature of the rough diamond.  The most popular
are round, marquise, oval, pear, heart, and emerald.  The choice is largely a matter
of personal preference.  Whatever the shape, however, a well-cut diamond is the work
of a master diamond cutter.  When cut to good proportions, the diamond is better able
to handle light, creating more scintillation.
It is the cut that enables a diamond to make the best use of light.

  1. When a diamond is cut to good proportions, light is reflected from one facet to
    another and then dispersed through the top of the diamond.
  2. If the cut of the diamond is too deep, some light escapes through the opposite
    side of the pavilion.
  3. If the cut is too shallow, light escapes through the pavilion before it can be
    reflected.
Clarity
Color

Prices of diamonds do not increase in proportion to their size.  If the size of a diamond doubles, it's prices is more than double.  If it
triples, it's size is much, much greater than triple.  This is due to the rarity of larger gemstones.  The larger they are, the rarer
they are.