Diamonds are forever
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A gemstone to be treasured

Formed from immense heat and pressure far under the earth, most diamonds formed over a billion years ago and they have been treasured since ancient times.

Valued today for their beauty and investment value, you can find a range of diamonds on bidorbuy.

A diamond to be treasured
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Put a ring on it

The centrepiece of any engagement ring. Diamonds represent truth and purity and cement the bonds of marriage.

You can find the ideal engagement ring on bidorbuy.

diamond engagement rings
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Coloured Fancy diamond gemstones

The worlds most valuable stone

Diamonds are not just colourless, but also come in a variety of different colours.

Coloured diamonds are given the term "Fancy" and are the worlds most valuable stones with some fetching over 900 000 USD per Carat.

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Learn about the 4 C's
of Diamonds

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Coloured Fancy diamond gemstones


Clarity refers to the amount of blemishes and chemical inclusions within the stone. The grades of clarity are given below:

IF - Internally Flawless
VVS - Very, very Small
VS - Very Small Inclusions
SI - Small Inclusions
I - Heavily Included


Diamonds are given a letter designation which defines how colourless a diamond is.
D is the most clear and valuable and the scale proceeds down to N which is usually a dirty yellow.

Diamonds also occur in coloured varieties (termed Fancy) which are among the worlds most valuable stones.


A carat is the unit of weight by which a diamond is measured.

Because large diamonds are less common than small diamonds, the price of a diamond rises exponentially to its size.


The cut of a diamond is not the same as its shape. When choosing the cut of a diamond, look for how well it reflects light.

Well cut stones will have a sparkly 'fire' because they refract light from one facet to another before dispersing it off the top.