All Coloured Diamonds

Explore the rainbow

Nina's are the coloured diamond specialists. Our range of certified, natural diamonds is a rainbow of rare and exciting delights.

Coloured Diamonds

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Buy Loose Coloured Diamonds from Nina’s Jewellery

Shop our exquisite selection of loose-coloured diamonds, including highly sought-after Argyle pink diamonds and precious Argyle blue diamonds. You can also buy loose natural yellow, green, orange, and champagne diamonds.


All loose diamonds from Nina’s Jewellery are hand-picked by our experts and are all natural in colour and ethically sourced. Whether you're seeking a special gift or buying loose diamonds in anticipation of creating a custom piece of jewellery, our selection of loose-coloured diamonds will exceed your expectations.

Are coloured diamonds real?

Yes! Diamonds may occur naturally in various colours, including yellow, blue, green, pink, red, and brown. The colour is typically caused by the presence of trace elements or other factors during the diamond's formation process. For example, nitrogen can cause a yellow colour, while boron can result in a blue hue. Distortions in the crystal lattice during formation can also contribute to the beautiful shades we see in natural pink diamonds.

Are fancy-coloured diamonds more expensive?

Fancy-coloured diamonds are often more expensive than their colourless or near-colourless counterparts due to their rarity and unique appeal. Some colours, such as blue, pink, and especially red, are rare and can command significantly higher prices.


The value of a coloured diamond is influenced by several factors, including the intensity and hue of the colour, the clarity and carat weight of the diamond, and the rarity of the particular colour. For more information, please see our Diamond Buying Guide.

What colour diamonds are available?

At Nina’s Jewellery, we have natural coloured diamonds of many colours available for purchase, including Argyle pink diamonds, Argyle blue diamonds, champagne diamonds, green diamonds, orange diamonds, yellow diamonds, and white diamonds.

What is the rarest colour for a diamond?

The rarest colour for a diamond is red. There are only about 20-30 natural red diamonds, making them highly sought after by collectors. The red colour in these diamonds is thought to be caused by distortions in the crystal lattice structure due to intense pressure during formation. Their rarity, combined with their striking appearance, makes red diamonds some of the most valuable and expensive diamonds in the world.