Polish & Symmetry
Polish and Symmetry are two important aspects of the cutting process. The Polish
grade describes the smoothness of the diamond's facets while the Symmetry grade
refers to the alignment of the facets. With poor polish the surface of a facet can
be dulled, creating a blurred or dulled sparkle. With poor symmetry, light can be
misdirected as it enters and exits the diamond. Polish and Symmetry are graded from
“Excellent” to “Poor”.