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Since
the beginning of the 20th century, the carat weight has been
adapted to the metric system and is now used internationally.
The
weight of all gemstones, including diamonds, is measured and counted in
“carats”, abbreviated to “ct”.
One
carat is divided into 100 points so that a diamond of 50 points is
expressed as 0.50ct or half a carat.
It
is because a diamond is actually “weighed” to determine its carat
weight that the purchaser needs to be aware that the proportions of that
diamond are good, as diamonds are often cut “heavy” to bring the
maximum weight with loss of quality of cut, and of course maximum weight
will greatly affect the price of a diamond.
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