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How Azimuth Shift, Facet Yaw, and Distortion Affect Sparkle Factor:

This is an advanced diamond grading tutorial on the subject of how azimuth shift, facet yaw, and distortion can negatively impact diamond sparkle factor. As a matter of fact, these little known factors of optical precision can make or break a diamond when it comes to light performance. That's because any variation in the size, shape, or alignment of the facets will create light leakage.

Azimuth Shift Diamonds

This page will discuss the concepts of Azimuth Shift and Facet Yaw as they apply to matters of Optical Precision and diamond cut quality. Images provided courtesy of Brian Gavin Diamonds.

Facet Yaw Diamonds

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