Overview

In the past, the only means of determining the diamond’s symmetry grade would have been the judgment and experience of the grader. Quantifying these features by instrumental measurement like scan from Helium Polish provides a more consistent basis for symmetry grading, and gives cutters the details needed to improve their diamonds’ symmetry.

In December 2012 GIA introduced additional 6 features to their list of earlier 9 parameters, which are used for judging symmetry of Round Brilliant Cut objectively, effective from early 2013. Helium Polish, the world’s most reliable polish diamond scanner, was the first to introduce all these 15 parameters in “GIA Facetware” integrated in the system.

In line with this development, Lexus brings you GIA FacetWare verion 23.0 inclusive of the objective symmetry grading with this 15 paramters.

In line with further development, In early August 2015, Lexus launched GIA FacetWare verion 2015.07 inclusive of the objective symmetry grading with total 17 parameters adding 2 more - new parameters.

Salient Features