Polished Diamond Course

This course is fast-paced and will quickly bring you to a level where you can identify, grade and price diamonds according to international grading and trading practices. It will give you a thorough understanding of the grading standards followed worldwide and is ideally suited for individuals with tight time constraints.


  • Evolution of diamonds from origin to market
  • Mining process and morphology of rough diamonds
  • Manufacturing stages from rough to polished
  • Clarity, color, cut and carat weight estimation and evolution
  • Grading of fancy shaped diamonds
  • Identification of treatments, imitations and synthetics diamonds
  • Factors affecting diamond pricing


  • Intensive lab sessions
  • Training and practical work using diamonds ranging from 0.15 carat to above a carat
  • Limited number of participants to guarantee maximum attention to individual candidates
  • Informative manual and grading kit sourced from IGI Headquarters in Antwerp, Belgium
  • Guided tour of the IGI laboratory and research facilities

Career Options

The IGI graduates who have pursued their careers in the gem and jewelry industry mostly became: entrepreneur, gemologist, freelancer, buyer, salesperson, quality control supervisor, investor, jewelry retailer, manufacturer, etc.

Program Options