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Diamond Symmetry Guide

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.'

Here is an example of the types of symmetry that jewelers look for:

Correct Symmetry

Misaligned Crown & Pavilion

Misaligned Facets

Wavy Girdle

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

Excellent

Excellent

No symmetry defects visible under 10x magnification.

No symmetry defects visible under 10x magnification.
Anjolee Signature Diamonds

Anjolee Signature Diamonds

Very Good

Very Good

Any defects are very difficult to see under 10x magnification.

Any defects are very difficult to see under 10x magnification.
Anjolee Signature Diamonds

Anjolee Signature Diamonds

Good

Good

Any defects are difficult to see under 10x magnification.

Any defects are difficult to see under 10x magnification.
Not carried by Anjolee

Not carried by Anjolee

Fair

Fair

Defects are noticeable at 10x magnification, and may be visible to the unaided eye.

Defects are noticeable at 10x magnification, and may be visible to the unaided eye.
Not carried by Anjolee

Not carried by Anjolee

Poor

Poor

Defects are visible to the unaided eye.

Defects are visible to the unaided eye.
Not carried by Anjolee

Not carried by Anjolee