Affect On Strength
A carbon flaw in a diamond has a severe impact on strength. Any inclusion in a diamond is a weak point in the crystalline structure and will make the stone more prone to breakage. Specifically, if a cloud forms too close to the surface of the diamond, or the diamond is cut to close to a flaw, it will appear as a crack in the surface. Flaws near or on the surface of a diamond also appear a rough patches and are usually removed when the diamond is being cut for sale. When there is a small crack in the surface of the diamond caused by an extensive flaw in the crystalline structure it makes the diamond prone to further cracking. Diamonds flawed in this way are liable to crack under a modest sudden change in temperature, or a sharp blow.
Read more about this topic: Carbon Flaw
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