Beautiful
and rare, diamonds are desired for their sparkle and message of love. When you
buy a diamond there are four points that you should consider, collectively known
as the Four Cs:
Color
The best color is no color.
Diamonds allow light to be reflected and dispersed as a rainbow of color. This
light dispersion, or color flash, has no effect on the technical grading of
color. The absolute finest colorless stone carries a D rating, descending through
each letter of the alphabet to Z, designating a diamond of light yellow, brown,
or gray.It is often surprising to learn that diamonds also occur by rare accidents
of nature in shades of pink, blue, green, amber, or even red.
Fluorescence is not directly related to a diamonds color. This separate
characteristic refers to the diamonds ability to fluoresce under ultraviolet
(UV) light.
Cut
The cut of a diamond refers to its proportions. Of the 4C's, the cut is the
aspect most directly influenced by man. The other three are dictated by nature.
Clarity
Almost all diamonds contain very tiny natural birthmarks known as inclusions.
To determine a diamond's clarity, an expert views it under 10 power magnification.
In addition to internal inclusions, surface irregularities are referred to as
blemishes. These two categories of imperfections-inclusions (internal) and blemishes
(external)-make up clarity.
Carat-Weight
Most people compare carat weight to size. The larger the diamond the more it
weighs. The weight of a diamond is expressed in carats. The word carat originated
from the carob tree or Ceratonia siliqua. The tiny seeds of this tree are well
known for their uniformity and consistent weight.