Polish Diamond Grading & Valuation Course

Session 1

Session 2

Proportion (Full Diamond Measurements)

  1. Crown Angle
  2. Crown Height
  3. Girdle Thickness
  4. Pavilion Depth
  5. Pavilion Angle
  6. Total Depth

Polish Defect = Diamond Finishing
Symmetry Defect

  1. Facet Symmetry
  2. Proportion Symmetry
  3. Grading System of Cut, Polish, Symmetry
  4. Heart & Arrow
  5. Fluorescence Identification

Session 3

Session 4

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