A guide to chocolate diamonds


Although traditional diamonds are known to be clear sparkling stones that catch the light, diamonds can, in fact, be found in many different colours. Champagne diamonds and brown diamonds are the names often given to coloured diamonds, and chocolate diamonds are the darkest on the colour spectrum.

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Many believe these dark brown stones are man-made and created in a laboratory and therefore not genuine, but they are actually formed naturally deep inside the earth under high pressure, and that is what causes their distinctive colour.

Colour grading

The Gemological Institute of America has produced a diamond colour grading chart and this is used as an industry standard. The system uses letters which range from D (Colourless) to Z (Light Yellow). Most diamonds are actually coloured, and colourless diamonds are extremely rare and so are subsequently also the most expensive. The most commonly coloured stone has a recognisable yellow tint and the really deep coloured stones are given an additional Z+ grading of 1-9 to determine colour intensity.

Personal choice

Whether you like or dislike chocolate diamonds is a matter of personal taste, but for customers looking to purchase an extra special diamond eternity ring, for example, this may be something they should consider. The formal grade that the stone is given is not important, as anyone choosing a diamond will make their choice based on budget, the size of the stone and simply on whether or not they like the colour. You can see many of the available colours and styles from online jewellery specialists, such as

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Jewellery is considered to be a very special luxury gift and as this recent article in The Metro Newspaper shows, proposals are still considered the perfect occasion to give jewellery to that special someone.


Coloured diamonds are often less expensive than white stones, but as with white diamonds, understanding the clarity grade of chocolate diamonds is important, as it gives a measure as to how many inclusions or internal flaws there are in the stone. If there are too many, then the stone will lose its sparkle, so it is always worth checking. A good way of testing is to look for black spots or defects which are visible with the naked eye, or alternatively, a professional jeweller would be able to tell using a microscope.

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