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The 4 Cs In Detail: Clarity | Diamonds

Posted in Diamonds by La Vivion on 10th October, 2013
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Finding the ideal gemstone for jewellery can be challenging. If you are on the lookout for the perfect gemstone, it is important to have an understanding of diamond clarity. What are the most important aspects when it comes to the clarity of gemstones?


The Formation Of Diamonds


No two diamonds in the world are the same, as they are formed individually deep inside of the earth’s mantle. Afterwards they are brought to the surface by the internal eruptions of our planet at supersonic speeds. While the gemstones are carried to the top, they sometimes attain certain blemishes that can affect their clarity. If these marks are internal, they are referred to as inclusions, whereas marks on the surface of the diamond are called blemishes.


Diamond Grading Systems


The impurities of these precious stones are subject to grades that are set to each specific diamond. The factors that influence the grade are listed below.

  • Size – what is the size of the inclusion or blemish?

  • Number – how many ‘birthmarks’ does the diamond have?

  • Location – where is the mark located on the diamond?

  • Nature – can the blemishes or inclusions affect the durability of your diamond?

  • Relief – is the mark visible? Usually, dark inclusions are more visible and can result in a harsher grade.

Explaining The GIA Diamond Clarity Grading System


At La Vivion we grade diamonds according to the international diamond grading system provided by the GIA. The 11-grade GIA Clarity scale indicates the brilliance of the gemstone, ranging from ‘flawless’ to ‘apparent inclusions’. If you want your diamond to refract and reflect light perfectly, it has to be as blemish and inclusion-free as possible. The finer points of the scale are detailed below.





Flawless – no inclusions or blemishes under 10X magnification when checked by an experienced grader. These diamonds are extremely rare and beautiful.


Internally Flawless – the diamond has no significant blemishes on the surface and no inclusions under 10X magnification. Most blemishes can be removed by minor polishing. Rare and beautiful.



Very, Very Slightly Included – these stones have hard-to-detect inclusions that even experienced graders cannot locate easily under a 10X magnification. Rare and beautiful.



Very Slightly Included – the surface of very slightly included diamonds has minor inclusions such as small crystals, clouds or feathers that are visible under 10X magnification. Excellent quality stones.



Slightly Included – inclusions become visible under 10X magnification to an experienced grader. When used in jewellery, the inclusions are usually less visible. 




Included. Gemstones with significant inclusions which are visible to the naked eye.


If you need any help on which grade to choose for your jewellery, feel free to contact us by emailing enquiries@lavivion.com.



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