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Diamond 4C Diamond Symmetry
Symmetry is the devil's detail in the Cut, determining the precise alignment of the diamond facets and the final brilliance.
1. what is symmetry?
Symmetry refers not to the external shape of a diamond, but to itsPrecise alignment of the shape, size and alignment of each facet.The diamond is like a mirror image. Perfect symmetry turns the diamond into a precision optical instrument.
Excellent symmetry
All facets are perfectly aligned and the light travels smoothly.
Poor symmetry
The facets are skewed and misaligned, and the light paths are confused.
2. GIA Symmetry Levels
GIA categorizes symmetry into five grades. To ensure the fire and value of your diamond, it is highly recommended to select aExcellent (EX) maybe Very Good (VG) Grade.
3. Summary of Purchase Highlights
Check GIA Certificate
The "Symmetry" item on the certificate will clearly indicate the grade.
Locked EX or VG
This is the safest option to ensure the fire and sparkle of the diamond.
Match with Polish
Ideally, both symmetry and finish should be of EX or VG grade.
Guarantee of value and aesthetics
Excellent symmetry is not only more beautiful, but also has greater value retention potential.