Advanced Gemstone Inclusions

This hands-on two-day course exposes you to Mr John Koivula’s definitions of both typical and atypical inclusions in natural, treated, untreated and synthetic gemstones which have been pre-identified, honing your diagnostic skills and immersing you deeper into the beauty and wonder of gemstones. 6 CPD points available to NCJV members.

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  • Natural, treated and synthetic gemstones
  • Ruby/sapphire
  • Garnets
  • Tourmaline
  • Emerald/aquamarine
  • Spinel
  • Topaz and more


  • Diploma in Gemmology graduates (or equivalent)
  • Jewellery valuers
  • Retail and wholesale gem sales
  • Researchers
  • Personal Interest
  • Gem enthusiasts
  • Lapidarists


Courses are provided by Gem-Ed Australia and individual State Divisions. Select a division below to view upcoming course dates, fees and to enrol.

offerred by the following

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