• Symmetry

    Symmetry of a diamond is a measurement of how symmetrical is the overall appearance of the stone, the facet arrangement, shape and alignment of its facets. Both symmetry and cut are important factors that influence a diamond’s sparkle.

    DiaPurePerfect Symmetric Arrangement

    • Crown

    • Pavilion

    “Excellent” Grade - Defects or small flaws are hardly visible at 10x magnification.

    • Very Good

      Very Good Grade - Small symmetry flaws can be seen under 10x magnification.

    • Good

      Good Grade - Polish features are obvious under 10x magnification and may influence the visual appearance.

    • Fair

      Fair Grade - Distinct symmetry defects can be discovered at 10x magnification and affect the visual appearance.

    • Poor

      Poor Grade – Obvious symmetry defects can be seen with naked eye and affect the visual appearance.

Examples of Poor Symmetry:

  • Off-Center Table
  • Misshapen Facets
  • Out-of-Round
  • Table and Girdle Not Parallel
  • Extra Facets
  • Wavy Girdle

  • Diamonds that have been graded by GIA with the highest “Excellent” rating in Cut, Symmetry and Polish are 3EX ( Triple excellent ) diamonds. All DiaPure diamonds are 3EX ( Triple Excellent ) diamonds.