Jewellers' Network

Be Ahead Of The Game!

Tanzanian President John Magufuli ordered his military to build a wall around his country’s Tanzanite mines. This is apparently in response to an increase in illegal mining, smuggling and other irregularities.

I know I’ve mentioned this before, but it’s worth mentioning again: this is the time when we start seeing more and more imitations, synthetics and artificially treated stones passing through the trade. Glass makes a fantastic imitation of tanzanite, as does synthetic forsterite. And, where the coating has only been on the pavilion of the stone, we have seen it on the crown as well.

It is therefore imperative to have your stones checked and certified to protect your good name and reputation.

We are offering you an exciting new course that covers everything you need to know about how to grade and sell two of the most popular magnificent gemstones. Learn how to grade and price tanzanite and diamonds in our 2 day Practical Diamond and Tanzanite course on the 28-29th June 2018. The cost is just R3 500 per person which includes a light lunch and free tanzanite filter worth (R360) which will enable you to separate the imitations from the natural gemstone. Click here to register.

Once you have completed the course you will be able to:

  • have a better understanding of how the diamond industry works,
  • answer questions like blood diamonds, diamonds as an investment, etc.,
  • buy and sell diamonds with confidence,
  • estimate the weight of diamonds set in jewellery,
  • estimate the value of old cut diamonds,
  • explain the 4C’s to customers,
  • learn how to use a refractometer,
  • distinguish between tanzanite and the fakes,
  • answer questions like when will the mine run out,
  • to use and care for the equipment, as well as what equipment you need to suit your particular requirements and so much more

Warm regards,


*  Coloured Stone Grading System and Pricing Course available online here for only R350. 

*  Get Your Tanzanite Filter Today for only R360. Click here.