Symmetry refers to how precisely the various facets of a diamond align and intersect. This can include extra or misshapen facets, off center culets and tables, and wavy girdles.
A diamond with poor symmetry may misdirect light that travels into the diamond, sending it off at slightly wrong angles, and thereby reducing the diamond's brilliance. Often, a diamond cutter will purposefully allow a minor reduction in symmetry as a way of preventing a defect present in the rough stone from being retained as part of the finished diamond.
For more in depth information on symmetry visit our education section here.
Diamond Symmetry Specifications
|Excellent||No polish defects visible at 10x magnification|
|Very Good||Any defects are extremely difficult to see at 10x magnification|
|Good||Any defects are difficult to see at 10x magnification|
|Fair||Defects are noticeable at 10x magnification, and may be visible to the naked eye. Not offered by Austen Blake|
|Poor||Defects are visible to the naked eye. Not offered by Austen Blake.|