Internal Grain Center Diamond Inclusion Photography
Internal Grain Center (IntGr) inclusions are caused by irregular crystal growth which creates internal distortions, waviness, and haze.
Internal Trigons
All of the microscopic diamond 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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