The GIA has established an internationally accepted system according to which Clarity is graded from Flawless to Imperfect. Flawless diamonds are the most rare and as such they are considerably more expensive than the lower-rated, Imperfect diamonds.
Diamond clarity is divided into six categories, most of which contain several grades of clarity. As the clarity grade moves along the scale from higher to lower, the overall value of the diamond decreases. However, even though the clarity grade may drop, it might not necessarily affect the unmagnified appearance of the stone.
The table below defines the various levels of clarity in the GIA clarity scale for both white and colour diamonds.
The clarity grades from highest to least are as follows (simplified):
In a colourless diamond, clarity is one of the most important factors when determining a diamonds value. However, diamond clarity does not play as much of an important role in Fancy Coloured Diamonds. When purchasing a Coloured Diamond, the Colour and Intensity are the most important aspect when determining a stones value.
Even though diamonds are the strongest element known to man today they have been created in unimaginable conditions deep below the surface of the Earth. Therefore, it is needless to say that various imperfections within the stones can occur.
The inclusions that are found in diamonds are separated into two categories: ‘Internal' inclusions and ‘External' inclusions. All diamonds have inclusions however depending on the type, size and where they are located, they might not necessarily affect appearance of the stone.
0.35ct Fancy Purplish Red Heart (External Inclusion)
2.28ct Fancy Orangy Brown Round SI2 (Internal Inclusion)
A stone with an SI2 inclusion grade can sometimes appear 'eye clean' even though its monetary value may be lower. That means that it might cost less for the stone even though the diamond is still bursting with life. There is far more than just the clarity grade that will affect the appearance or value of a diamond.
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Working with Northern Cross Diamonds was great! The staff was very knowledgeable and provided me with a great deal of information about the canary yellow radiant cut diamond that I purchased. They wanted to make sure that I understood everything about the stone before I made my decision. The price was very competitive, less than other diamond providers. Once I had made my decision to purchase, the process and delivery time was very quick. Now I have a beautiful and valuable diamond in my possession, thanks to Northern Cross. I hope this helps spread word about your services.
I have used Northern Cross Diamonds for the last couple years. I have a full time job, rental properties, stocks and mutual funds, yet I am always looking for new investment opportunities. Meeting and dealing with the professionals on staff (especially Stephen) has pointed out creative ways of maximizing the investment potential within coloured diamonds. They are always there to answer questions when I am curious on making a new investment and the experience has been nothing but great!
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