Internal Carbon Pique Diamond Inclusion Photography
Piqué are tiny black spots caused by undigested carbon inclusions (natts) within diamonds. Black or dark material found within a diamond's internal fracture planes can also be particles or crystallographic inclusions of graphite, ferropericlase, pyrrhotite and pentlandite.
Microscopic Carbon Picque Inclusions
Hexagonal Platelet Inclusion in Trillion Cut Diamond
Carbon piqué inclusions are sometimes removed by diamond enhancements such as laser drilling, which can leave their own types of unique inclusions.
All of the microscopic diamond carbon inclusion photography on this page was generously contributed by the AGSL gemological testing laboratory in Las Vegas, Nevada, and is reproduced with their permission.
Diamond photography by Joe Vanells, Director of Gem Services at AGSL. No reproduction without written permission from AGSL - All rights reserved.
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