Learn About Diamonds

Buying a diamond is an exciting experience. Armed with the right information it is also straightforward and simple. We have compiled all the information you need to make the right choice and to understand the terminology used to describe diamonds, including the 4 C’s – Cut, Colour, Clarity and Carat. You can also read our How to Buy a Diamond guide which gives a few practical tips on how to make the right choice.

We also invite you to come in for an obligation-free diamond appointment with one of our jewellers, who can show you a range of diamonds to illustrate different colours, clarities, etc and answer any questions you may have.


Diamonds come in many different shapes including round (Brilliant), square (Princess), cushion, emerald, asscher, radiant, oval and pear. All diamond shapes have different attributes, but the overall beauty of the individual shapes is a matter of personal taste.

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The cut of a diamond determines its brilliance and refers to its proportions, symmetry and finish. Put simply, the better it has been cut, the more it will sparkle.

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A diamond’s colour grade refers to the lack of colour. In other words, diamonds that are white, containing little or no colour, receive higher quality grades than those with visible colour.

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Clarity refers to the presence (or absence) of tiny impurities or blemishes within or on the surface of a diamond. These imperfections are also known as inclusions.

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Carat is a term that refers to the weight of a diamond, although people usually associate it with size. The carat weight is often the factor that people will vary to find a diamond within their budget.

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A diamond certificate outlines a diamond’s exact measurements, weight, cut and overall quality. Larsen Jewellery’s loose diamonds come with independent certificates from leading labs such as GIA.

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Fluorescence is the visible emission of light which occurs when a diamond is exposed to Ultraviolet Light. Most diamonds have very little fluorescence which does not influence the quality or visual appeal of the diamond.

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Coloured Diamonds

Natural diamonds come in many colours including pink, champagne, cognac, blue and black. These colours are generally referred to as “fancy colours”.

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