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Diamond Symmetry

Symmetry refers to how precisely the various facets of a diamond align and intersect. Quality is graded on the appearance of extra or misshapen facets, off-center culets and tables, and wavy girdles. Sometimes, a diamond cutter will deliberately allow a minor reduction in symmetry as a way of preventing a defect present in the rough stone. Symmetry typically ranges from 'poor' to 'excellent'.

Symmetry has a limited impact on the appearance of a diamond and a greater impact on price.  A diamond with 'excellent' symmetry and polish may be priced higher than a diamond with 'good', 'fair' or 'poor,' because they are perceived as more valuable. A diamond with a lower symmetry grade will also have a higher probability of noticeable defects.

Each Anjolee Diamond™ Certificate displays the symmetry grade, using the following scale:

Excellent No symmetry defects visible under 10x magnification. Anjolee Diamonds
Very Good Any defects are very difficult to see under 10x magnification.  Anjolee Diamonds
Good Any defects are difficult to see under 10x magnification.  Not carried by Anjolee
Fair Defects are noticeable at 10x magnification, and may be visible to the unaided eye. Not carried by Anjolee
Poor Defects are visible to the unaided eye. Not carried by Anjolee