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Cut
The cut of a diamond, its proportions and symmetry are of
extraordinary importance as they have a strong influence on the
brilliance, liveliness, or sparkle of a stone. This is the one
factor most directly influenced by man as the other three are
dictated by Nature. The polisher's skill is also important for
shaping the stone. The most popular diamond shape is the round
brilliant-cut. Other shapes such as the emerald-cut, oval, pear,
heart, princess-cut, and marquise, are referred to as "fancy
cut". The cut and proportion of a stone in the diamond trade is
also known as its "make" and overall quality can be described as
very good, good, medium, or poor "make".
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The width
and depth have the greatest effect on how light travels
within the diamond. |
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The diagram below depicts the attributes of a diamond.
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Color
Color is the most important characteristic of a gemstone and it
is one of the key factors to be considered when determining the
value of a diamond. The ideal color is the total absence of all
body color (colorless) except in fancy colors of yellow, pink,
blue, green, champagne, black, and the very rare red, where an
intensive hue is an asset. A very precise scale of color grading
is in general use today in the diamond trade as defined by the
GIA (Gemological Institute of America). The grades are
distinguished by letters of the alphabet, beginning with the
best color which is D.
Recommendation: As a rule of thumb, when you are purchasing a
diamond for an engagement ring the lowest you would ever want to
go on Color is I. If you are looking at a diamond in a setting
that has a grade of an I and it looks really yellow then it is
possible that the diamond was bought as a K or L color and sent
out to be certified in the setting.
Clarity
The clarity of a gemstone is assessed by examination of
imperfections, inclusions (internal objects) and blemishes
(external marks) under magnification of 10X(X=power). Almost all
diamonds contain minute traces of non-crystallized carbon or
small non-diamond crystals. A flaw in a gemstone is Nature’s
fingerprint making every diamond unique. Most flaws are not
visible to the naked eye and require magnification to be
apparent. However, the fewer there are, the rarer the gemstone
will be.
This diagram shows what inclusions look like under 10X
Magnification.
Recommendation: When purchasing a diamond, the lowest in the
diamond clarity should be an SI2, which is normally eye clean.
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Carat
The carat is the unit of weight, not size. One carat weighs 200
milligrams or 1/3 of a gram and is divided into 100 points, so
that a diamond of 50 points is described as a half carat or 0.50
carats. Carat-Weight is the most obvious factor in determining
the value of a diamond, but it is important to bear in mind that
two stones of equal size can have very different values
depending on their quality. In addition, the cost per carat will
rise when the size of a diamond increases(Ex. There would be
about a $700 dollar savings in a diamond weighing 0.94ct and
another weighing 1.01ct with all the other 3 C’s being equal,
even though they look the same size).
Listed below is the variance in size of diamonds.
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Recommendation:
Before choosing the size of the diamond you want for your
significant other:
1. Show this chart to her and ask to decide what size fits best.
2. Once you both come to a consensus on what size diamond, then
schedule an appointment and we will work together to find that
perfect diamond.
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