For centuries, diamonds have been desired and coveted. While
rubies, sapphires, emeralds, and other coloured gems are vibrant
and beautify jewellery with their exotic shades, it is the diamond
that sparkles with fire, adding brilliance to any piece. The
diamond has long been a symbol of love, status and privilege, and
continues to be one of the most appreciated gems worldwide.
Diamonds are formed when carbon deposits in the earth come
together under high temperature and pressure conditions for an
extended period. It is difficult for these conditions to remain
consistent in a volatile environment, thus making the diamond a
The diamond, its term derived from the Greek word 'Adamas' which
means invincible, is the most durable of all gemstones. Temperature
and pressure conditions cause the carbon atoms to bond closely,
making the diamond resistant to any form of wear, heat and
Diamonds are graded on a color scale from D to Z, D being
colourless and Z being light yellow. Colourless diamonds are rare,
so a D coloured diamond is more valuable than others.
On the other hand, diamonds also come in an array of colors like
pink, blue or red. We call them fancy coloured diamonds. A deeper
colour increases the value of a fancy coloured diamond.
Diamonds are graded for clarity from
Flawless (Fl) to Included 3 (I3). Pure diamonds are extremely rare,
commanding top prices. Most diamonds have some impurities, though
visible only under 10X magnification.
The cut of a diamond depends on its proportions,
polish, and symmetry. A "well-cut" diamond is bright, fiery,
symmetrical, and sparkles with light. Diamonds are graded for its
cut on a scale from Excellent (Ex) to Poor (P). Diamonds with the
Excellent cut grade can command high prices especially in sizes
One carat is weighed at 0.200
grams, and is divided into 100 points, just like cents in a dollar.
As large diamonds are rarer than small diamonds, they also cost
more per carat.
The Rapaport Price List is the primary source of diamond prices
information for the diamond trade and is commonly used by dealers
as an approximate guideline for evaluating diamond prices. Readers should understand the
kind of prices quoted, standards used to describe the diamonds
referred to in the List, the limitations of the List and how it can
be used to aid buyers and sellers. The price lists are published
online every midnight Thursday.
For as long as diamonds and gems have been bought and sold,
people have found ways to increase their value and make them more
desirable through artificial enhancements. Diamonds are also
subjected to treatment processes, sometimes either to improve their
colour or clarity, or both.
Synthetic diamonds are grown in laboratories and like natural
diamonds, possess the same chemical composition and crystal
Diamond simulants imitate a natural diamond's appearance, and
can be found in the market at much lower prices. They can be made
out of a variety of elements, such as glass, minerals, or other
Diamond Mines Around the World
Diamonds have been found in countries such as India and Brazil.
However, Africa remains one of the significant diamond producers
joined by Russia and Canada.
More commonly referred to as 'blood diamonds', they are used to
fund military action in opposition to internationally-recognised
Our diamonds are closely monitored through the Kimberley
Process, which sieves out conflict diamonds before they enter the
market. Today, over 99% of all diamonds available in the market are
certified by the Kimberley Process as being free from conflict.