How do you value a gem? One factor in
valuating gems is its weight. Gem weight is measured and valued in
carats. One metric carat equals 0.2 grams (.007 ounces). The word carat
comes from carob, a Mediterranean tree whose seed was for centuries the
standard for weighing precious stones. The price depends on that
particular gem on the open market.
There are certain properties that will influence
the price. The gem is worth more if it is natural versus synthetic. The
natural color and how the coloring is distributed throughout the stone
in important. If the stones have any flaws or inclusions, that could
affect the durability of the stone, the value will decrease.
The three main factors on the quality of a
gemstones are color, clarity, and color. Color should be determined under
normal daylight, fluorescent, and incandescent to notice if there are
any changes. The clarity of a gem can be determined by eye examination
and by using a 10X magnifier to notice any inclusion or blemishes by
looking at all angles of the gemstone. The cut of the stone is
determined by its beauty, appeal, and symmetry.
The price of the gem increases or decreases in
value depending on how a jeweler arranges the gem on a ring, earring,
bracelet or necklace.