Symmetry is one of the most important aspects to consider when purchasing a diamond. After all, if you're going to invest in something for life, it's worth making sure that it is as close to perfect as possible!


What is Diamond Symmetry?

The precise alignment and intersection of a diamond's facets are referred to as symmetry. A diamond's symmetry includes extra or oddly shaped facets, off-center tables and culets, and wavy girdles. 

Is Symmetry Important in a Diamond?

Well, let's just say poor symmetry really takes the sparkle out of a diamond. When a diamond has poor symmetry, that means its facets don't align properly - and we all know diamonds are famous for their ability to catch the light! That lack of alignment means the stone cannot refract light as it should - meaning you'll get a dull, lackluster diamond instead of the perfectly twinkling one you wanted. 

For diamonds with a symmetry grade of Excellent to Good, symmetry should not be the main factor when selecting a diamond since each of these grades is possible in diamonds of exceptional appearance. But in diamonds of VVS2 Clarity and higher, symmetry is particularly crucial since the extremely minute flaws caused by Fair or Poor symmetry (which can resemble pinpoint inclusions) would impair the diamond's otherwise flawless appearance.

A diamond with excellent symmetry and polish usually retails for 10%–15% higher than a diamond with good symmetry and polish, even though a diamond's symmetry has a relatively small effect on its visual appearance. This premium has less to do with the real impact on a diamond's look and more to do with how valuable consumers view "outstanding" grades.

A diamond should not be accepted or rejected purely based on its symmetry. The overall Cut grade should be regarded as the main criterion when selecting a diamond because it already accounts for symmetry. Symmetry (and polish) can then be utilized as an additional refinement or tie-breaker when evaluating two diamonds with the same cut grade.

Wrapping Up:

At the end of the day, symmetry is an incredibly important element when it comes to diamonds. While it may not necessarily affect the overall appearance of a diamond with good or excellent symmetry, it still plays a crucial role in maintaining and enhancing the beauty of a diamond. As such, careful consideration should be given to a diamond's symmetry when selecting one for purchase. After all, you want your diamond to be as close to perfect as possible!