GAA Lectures at the International Jewellery Fair
Join us for a special series of GAA hosted lectures on Saturday at the International Jewellery Fair.

These expert-led sessions are designed for anyone working with or passionate about gemstones and diamonds — offering insights from two of Australia’s most respected gemmologists.
Held on Saturday August 23.
Whether you’re in the just starting in the trade, studying gemmology, or wanting a refresher, these sessions are not to be missed.

Natural vs Synthetic Diamonds
Presenter: Bill Sechos
Run twice
Learn how to distinguish natural diamonds from their synthetic counterparts, and discover the latest instruments and methods used in diamond identification.

Coloured Gemstones
Presenter: Jan Vlazny
Run twice
Delve into the vibrant world of coloured gemstones. This lecture explores key identification techniques, treatments, and the current market landscape.