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Coloured Lab Grown Diamonds

Fancy coloured lab grown diamonds. Kaleidoscopic diamonds.

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Why a "fancy" coloured lab diamond is a hidden gem...

How are coloured diamonds formed?

Fancy colours found in rare natural diamonds evolve entirely through natural, though unusual, processes.

With lab grown diamonds this process is different and varies between colour hues.

Certain colours, such as pinks and reds, can only be achieved by employing sophisticated post-growth treatments.

Yellow lab grown diamonds

The most prevalent colour within lab grown diamonds, yellow is created by the introduction of nitrogen atoms as the diamond is grown.

Nitrogen impurities absorb blue light, such that the diamond reflects a yellow hue. The degree of nitrogen concentration coupled with the specific growing process employed, determines the strength and saturation of the yellow displayed.

Green lab grown diamonds

To create the green colour the growing diamond is exposed to radiation in the form of electron beams.

This causes changes in the stone's crystal structure which produces the required hue.

Blue lab grown diamonds

Boron is introduced to the diamond during the growing process, which interacts with carbon atoms.

This causes the diamond to absorb red, green and yellow light while allowing blue light to be emitted. 

Pink & red lab grown diamonds

Once a diamond has been grown with nitrogen impurities contained within it, subjecting it to radiation and extremely high temperatures creates the much sought after pink colouring.

This irradiating treatment is conducted post-growth to produce a range of pink hues ranging from faint to deep intense saturation. 

MORE OPTIONS

We offer the widest selection of certified "fancy" coloured lab diamonds in the UK.

WE HANDPICK THE RICHEST COLOURED STONES FROM ASIA, EUROPE, THE FAR EAST AND THE USA.

WITH ACCESS TO OVER 15,000 FANCY ETHICAL DIAMONDS, WE SHOULD BE ABLE TO FIND YOUR IDEAL STONE.

SO IF IT'S OUT THERE AND IT'S WORTH BUYING, WE WILL FIND IT FOR YOU.

Shop fancy coloured lab grown diamonds UK - Pobjoy Diamonds
Pink oval sjape lad grown diamond from Pobjoy Diamonds UK

Why not repurpose?

If you have an existing gemstone ring you no longer wear - or that has lost it's stone - we can set it with a new one for you.

A match made in heaven

Really make heads turn with a pair of scintillating coloured diamond stud or drop earrings.

We can find you pairs of perfectly matched fancy diamonds and create the look for you.

Coloured lab created diamonds USA customer information

15% Off Our US Dollar Prices

How do lab diamonds compare?

Lab grown diamonds have the same chemical composition, crystal structure and optical properties as earth created diamonds. They are not diamond simulants.

Are they more ethical?

Lab grown diamonds are less impactful to the environment than mined, earth created diamonds. They use significantly fewer resources and emit less air polution to create.

ARE THEY BETTER VALUE?

Lab grown diamonds offer fantastic value compared to mined, earth created diamonds of similar size and grade quality. Which means you will get a larger diamond for less.

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