Our Guide To The 5 C’s

Cut (shape), Carat weight, Colour, Clarity and Certification are the five most important things to consider when assessing the value and quality of a diamond.

Cut: The cut refers to the angles of the facets of the diamond – in particular to the size of the girdle and the angle of the top and bottom facets to the girdle, known as the critical angle.

The critical angle is important because it is that which enables the reflection and refraction of light and releases that fire for which the diamond is renowned.

Carat Weight: Carat is the most asked about aspect of a Diamond, each diamond is sold by weight; known as the metric carat, 0.20 gram. The word carat is derived from the carob bean, found in many Mediterranean countries and originally used to weigh the diamonds.


You may think the higher carat the more valuable the Diamond may be, however, if it possesses a far superior cut, higher colour and internally flawless clarity; it can be a higher value.


With diamonds, it is about every aspect of the stone, quality over quantity or quantity over quality. Be sure to mention which you prefer when purchasing your dream piece, you are then guaranteed to be ready for your most memorable experience.  

Colour: The most valuable colour for a diamond is white or colourless. On the GIA grading system this is a D colour.

Diamonds generally contain a hint of colour, usually yellow or brown, caused by the presence of other elements during their formation deep within the Earth, billions of years ago. These stones are less rare and therefore, less valuable than the finest and whitest stones.

Clarity: The fewer inclusions or characteristics that appear within the structure of a natural diamond, the rarer and therefore more valuable the stone.

Certification: When falling in love with a Diamond, look for a Certificate supplied. This will be a unique verification for your stone. It will give you the peace of mind when looking to create your bespoke ring; this will pull all important credentials for your Diamond and put it on a certificate, which will be supplied by a well known independent laboratory.

Certificates are supplied only to clarify the engagement ring your fiancé-to-be has chosen for you, and we would advise not to be obsessed with the certificate, but more the diamond itself.

"Size isn't everything, its whats inside that counts"

- Gold Sobel Consultancy - 

Mobile: 07867494681

© 2019 Gold Sobel Consultancy . 

London, UK

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