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Over our many years of trading, we have established Worldwide contacts which enables us to competitively source the perfect diamond for each individual customer, which is where our speciality lies.  As independent jewellers this allows us to hand pick and assess every diamond in person to ensure it meets your personal criteria.



The 4Cs have since become the standard for describing a diamond’s specific characteristics. Of course, there are many beautiful shapes, sizes quality and colour. Unlike the majority of jewellers we specialise in diamonds and offer all grades of diamonds to make sure there are diamonds for every taste and every pocket. 

The combination of CUT, COLOUR, CLARITY & CARAT denote a diamond’s value and rarity. 


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A diamond’s brilliance is largely determined by its cut.  An expertly cut diamond, with perfectly symmetrical and aligned facets, will reflect light beautifully, leading to unrivalled brilliance.  True expertise is required to create facets with perfect proportions that maximise light and increase a diamond’s signature sparkle.

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White or colourless diamonds exist on a scale of many different shades, ranging from brilliant white to pale yellow.  These subtle differences are graded on a colour scale from D (colourless) to Z (light yellow).

Beautiful coloured diamonds, in hues of yellow, pink, blue, orange, green and red, for example, go beyond all other measures of rarity, and are graded based on their intensity and enticing depth of colour.

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Diamonds are created by tremendous heat and pressure deep within the earth.  This thoroughly organic process means that virtually all diamonds contain internal inclusions and surface blemishes.

Diamonds with fewer of these characteristics are deemed to have a higher clarity, ranging from FL, or Flawless, to I, signalling a number of inclusions.

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A ‘carat’ is defined as one hundred points and precise measurements are taken to the hundredth decimal place to ensure complete accuracy. When it comes to diamonds the heavier the weight the more valuable the stone. Carats are measured in weight, not size which is widely misunderstood. However small and perfectly flawless is a good rule to follow: the quality of diamond is best regardless of the carat weight. 
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Buying Diamonds

If we don't have the specific stone you desire in stock, we will contact our diamond suppliers for a stone that matches your requirements for your personal viewing on a non-obligation basis, meaning you have no pressure to buy.
Most stones also come with a certificate that have been assessed in an independent diamond grading laboratory. 


You've bought your beautiful diamond, now it deserves a beautiful setting. Choosing how a diamond is mounted can dramatically alter the appearance. We offer a 1-1 service in store, guiding you through designs and settings with one of our diamond experts. Nouveau designers are as skilled as they are experienced, our passion is to create a ring that is uniquely right for you with the best intimate service you deserve.

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All of Nouveau's diamonds are purchased or sourced from legitimate sources that are not involved in funding conflict and in compliance with United Nations resolutions. We deal with reputable suppliers whom we know and trust for generations and who guarantee their diamonds are non-conflict. 

What happens after you have bought a diamond?

A valuation for insurance will be provided.  We recommend that you visit us every couple of years after your purchase in order that we can check your diamonds are secure and review any necessary changes in the valuation.  We can also give them a little clean to make sure it looks just like new.