Coloured Diamonds

Classic white diamonds are the ultimate elegance, but coloured diamonds can add dramatic impact to any piece of jewellery. Seventy Seven Diamonds have just launched an array of stunning fancy coloured loose diamonds to their collection, which includes pink, blue and grey diamonds!

How are coloured diamonds formed?

Diamonds can become coloured in two ways. Firstly, tiny particles or impurities such as Nitrogen or Boron within the stone can alter the appearance, giving the diamond a coloured hue. Also, structural defects in the crystal lattice can affect the way light passes through the diamond. White diamonds have hardly any impurities or structural defects, giving them their clear transparency. Here is a selection of some of our favourite diamond colours...

Blue Pear-Shaped Diamond

Blue diamonds are one of the rarest coloured diamonds in existence, and are caused by the presence of Boron particles inside the diamond's structure. The best known blue diamond is the infamous Hope Diamond. Weighing a total of 45.52 carats, this dark greyish-blue coloured diamond was supposedly cursed, bringing bad luck to it's owner.

Yellow Round Brilliant Diamond

Yellow diamonds are created when Nitrogen particles appear within the stone. They exist in  a wide range of shades, depending on the amount of Nitrogen present. Pale yellow is the most common hue, while stronger coloured vivid yellow shades are rarer and more sought-after. An example of this rare vivid colour can be seen in the Tiffany diamond, which weighs an incredible 280 carats.

Black Princess Cut Diamond

Black diamonds are not actually black! The stone instead contains a large amount of dark inclusions, which give the diamond it's black appearance. One of the best known black diamonds is the Black Star of Africa, a beautiful 202 carat rock.

 To view more of these exquisite coloured stones and purchase loose diamonds, click here. Alternatively, bespoke pieces of jewellery can be created- our in house design team can work with you to design the perfect piece of jewellery. What would you create?