PROPERTIES OF A DIAMOND
The desirability and attraction towards diamonds is
due to the unique physical and optical properties they
possess. In their natural, uncut state, a handful of
diamonds might resemble a handful of dull gravel. The
role of the cutter in releasing a diamond's beauty therefore
is highly important. Please find more details on this
in our section on cut.
Diamonds are the hardest naturally occurring substance
known to man. Their hardness is due to the way in which
the carbon atoms bond to create its crystal structure.
This allows a diamond to achieve a higher level of polish,
which gives it greater lustre than any other gemstone.
It also allows it to withstand abrasion. The fact that
diamonds are so physically resilient makes them the
perfect substance to use for industrial purposes, such
When we describe the appearance of diamonds, we often
refer to the high levels of 'brilliance' they display.
This term describes the stunning effect of reflected
light accompanied by a variety of colours that we see
when a well-cut diamond catches the light.
THE 4 C'S
The 4Cs - cut, colour, clarity and carat weight - are
the characteristics that determine a diamond's rarity
and value. They are the four basic criteria you should
look at when considering your purchase. Understanding
these will help you to realise why two diamonds of equal
sizes are not always of equal value.
The quality of the cut is very important. It determines
how well the diamond catches the light.
While most diamonds appear white, virtually all
of them display barely-there tints of colour. The colour
of a diamond is measured by the degree to which it approaches
Whilst a diamond is forming, tiny traces of minerals
and gases may have become trapped inside. These are
called "inclusions". The clarity grade of
a diamond is determined by the presence, size and positioning
of these inclusions.
The carat is a standard unit used to measure diamonds.
One carat can also be referred to as 100 points. For
example, if a stone is ½ carat, it can also be
described as 50 points.
Which of the 4C's are most
The beauty and value of a diamond are dependent
on a combination of all 4 factors. There is no straightforward
answer to this question, as it comes down to a matter
of personal taste. For many people size is the most
important consideration and so they will buy the largest
diamond they can afford. Others may feel more strongly
about quality, and so are prepared to sacrifice some
size so as to afford a stone of exceptional colour and
British hallmarks represent one of the earliest
forms of consumer protection, dating back to over 6
centuries ago. Every piece of our jewellery is tested,
examined and marked to give you peace of mind that your
jewellery is, in fact, correct.
The standard hallmarks are:
750 (18ct) Meaning there are 750 parts of pure gold
in every 1000.
375 (9ct) Meaning there are 375 parts of pure gold in
585 (14ct) Meaning there are 585 parts of pure gold
in every 1000.
850 (platinum) Contains 850 parts of platinum in every
950 (platinum) Contains 950 parts of platinum in every