Diamond Grading

Diamond Grading

(Duration: 5 days)

Polished Diamond Course Objectives

The Polished diamond  prepare the student to become proficient in every technique involved in the manufacture and grading of diamonds.

To teach the student how to sort and buy diamonds both in the rough and polished state and how colour, imperfection, shape and proportions affect prices.

Course Outline
  • Diamond crystallography
  • Diamond grading systehysical and optical properties: how to clarity grade, and how to plot clarity
  • Characteristics
  • Inclusions and blemishes
  • How to grade diamonds in the normal color range
  • How cut affects light return, beauty and value
  • How to determine table, crown angle, pavilion and depth
  • Measurements
  • How to read and compare Gemology or gemmology reports (GIA,EGL,HRD,IGI,AGS
  • How to compare proportions
  • Grading fancy shaped diamonds
  • Moissanite identification
  • Gold and precious metal identification
  • Jewellery Design
  • Diamond stimulants and treatments
  • How to grade mounted diamonds
  • Fancy coloured diamonds
  • Coloured stone overview
  • Stages of diamond polishing and
  • Marketing of diamonds, how to buy and sell diamond Jewelry gold, colored stones and the international diamond price and Jeweler structure


Course Costs
  • South African citizen: R9500
  • Non-South African citizen: US$950
  • A 50% registration deposit fee is payable

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