Diamond Guide

To understand the various intricacies that determine the quality, design and size of a diamond, we have developed a comprehensive guide for you to not only understand diamonds, but to appreciate them even more.

These four key elements; Colour, Cut, Carat and Clarity all universally guide us in understanding diamonds. 


Minus the first three letters of the alphabet, diamond colour follows a gradation starting from the letter ‘D’ (Colourless) which is the clearest of whites which often known as ‘exceptionally’ white, down to ‘Z’ attributed to Light yellow. ‘D’ and ‘E’ are the purest of white, followed by F,G,H as rare white or white, I to M as slightly tinted, N to R as very yellow light, then S to Z as light yellow.


Diamonds can take many shapes, ranging from the rectangular ‘ashoka cut’ sporting an elegant and period aesthetic, the perfectly rounded ‘brilliant cut’, the ‘pear cut’ (succeeding in its title’s promise) as a pear shaped diamond followed by a ‘cushion’ cut, ‘oval’ cut and ‘marquise’ cut.


A diamonds size and weight are predetermined by its carat, for example, a 0.20ct diamond would be much lighter in weight than a 2.00ct diamond. The higher the carat, the higher the value and premium it becomes. 


Throughout the production of a diamond, natural ‘inclusions’ can occur because of minerals and/or crystals which bind in them that lead to less light refractions through the diamond. To determine the clarity of a diamond they are grouped with such acronyms as; VVSI1, VVS2, VS1, VS2, SI1, SI2, these six are amongst the highest clarity of diamonds which us at Cervin Blanc offer for our customers, VVS1 and VVS2 are near flawlessly clear, VS1/VS2 are flawless to the human eye, and SI1/SI2 are subject to visible inclusions at a 10x magnification.