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Directory - Gemmological Association of Australia (GAA)

380-382 Spencer St
West Melbourne
VIC Australia 3003

P: 1300 436 338

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Synthetic moissanite is marketed by the jewellery industry as an affordable diamond alternative. Named after Nobel Prize winner and French chemist Henri Moissan, moissanite in its natural form is a rare mineral, silicon carbide.
Revisit the last 12-months of most popular stories and headlines on by category:
In part two of the Garnet: Gem of Many Colours series, key members of the garnet family will be discussed, together with garnet history – in the jewellery sense – and garnet lore.
Have you heard the term ‘jet black’? It refers to jet, an organic gem material that originates from fossilised trees. 
Hundreds of millions of years ago, the Earth was very different. Little did the creatures of our planet know, they would not only be a stepping-stone in the evolution of life, but also provide the humans of the future with fabulous jewellery gems in the form of ammolite.
The Gemmological Association of Australia (GAA) is Australia’s long established gemmological educator. Since 1945, the Association has been responsible for producing Australia’s gemmologists by educating and updating members of the gem and jewellery industry and the general public, about all aspects of gemstones and their substitutes.

Why GAA?
We are passionate and enthusiastic as evidenced in our dedicated team of professional educators and volunteers. Being a not-for-profit organisation provides assurance that we operate with the best interests of our members and students in mind

Our lecturers and demonstrators maintain a high academic standard whilst ensuring that what students study is also relevant. Restricted class sizes ensure that everyone receives adequate attention. With the GAA having Divisions in every state in Australia it means that our graduates become part of a local gemmological community – of benefit for networking and ongoing training.

On the job training, with its many benefits, is simply not enough these days. Can you confidently identify a diamond imitation like synthetic moissanite? A beryllium treated sapphire? Or laser drilled diamond? Not being able to answer such questions as these can cost a business thousands, not to mention reputation. Confidence and Knowledge sells.

For course information and GAA membership, contact us at:
1300 436 338 or

Members of the GAA receive quarterly The Australian Gemmologist — the informative and prestigious journal of the Association, also Division newsletters, free talks by guest speakers, library facilities and special rates for courses.
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