5 C’s of Polished Diamonds



Colour: Polished diamonds are mostly revered for their absence of colour. This has been the accepted normal in man’s pursue for perfection and rarity. The abundance of colour that is naturally found is diamonds is from the huge proportion of Nitrogen in the air we breathe. Diamonds free from colour are therefore occur rarer in nature. The rarer the commodity the higher the perceived value. The colour in polished diamonds is very difficult to distinguish with the naked eye amongst the five whitest/colourless grades, D-H. But their effect on their beauty is hardly noticed, because the colour is best viewed from the sides, however the impact on the price can be significant.




Clarity: Polished diamonds can also be graded in terms of their lack of internal distortions and naturally occurring inclusions. This like lack of colour is another form of rarity. Diamonds are naturally forming crystal structures, so to find them free of internal growth distortions is a rarity. The impact on their beauty normally needs magnification to see, and in gem quality diamonds doesn’t affect the passage of light in any major way. However this rarity can also dramatically affect its value without enhancing its beauty.




Carat Weight: Polished diamonds have a metric carat weight, this is the final weight of the cut and faceted diamond. This can be as low as one third of the weight of the original crystal. The carat weight of diamonds strive to reach above the various benchmarks of quarter ¼, half ½ , three quarter ¾ , one carat, one & half 1.50 and two carats etc. The more the weight the bigger the polished diamond will look. This is achieved at a price because a lot of the original weight could be sacrificed by cutting and faceting the diamond.



Cut Shape: Polished diamonds are shaped by man with technology and skill into the recognisable forms that we are familiar with. Their shape maybe predetermined because the polisher is trying to maximise the yield from the shape of the rough diamond, as well as cut out any major clarity characteristics so as to increase their value as a commodity. The round shape gives the maximum amount of light return, and is the most popular choice. It is both timeless and revered amongst the other popular shapes. Being the most expensive of all the other shapes does not make it necessarily the most beautiful. Polished diamond shapes can be individually chosen based on shape appeal and look upon ones hand.



Cut Quality: Polished diamond are cut and faceted using a wealth of technology and science. The cut quality is an expression of man’s abilities to master these skills. The skill is involved in faceting the diamond to the correct proportions and technical precision. The science is the knowledge of how light as is passes in and out of the diamond. The cut was commonly confused with the shape of the diamond and not it’s excellent display of brilliance derived by human interaction on the rough crystal. Why every diamond is not cut to perfection is not only because of the time and precision it takes, but also because of the wasted crystalline that is polished away to achieve such high precision, and the positions of naturally occurring imperfections within the original rough crystal. This cut quality has a huge impact on the price.




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