Marie-Hélène is a certified gemmologist and Accredited Senior Gemmologist by the AGA.
She has worked as a buyer for private individuals in gemstone and jewellery auctions.

In 2016, she took over the reins of EGM, which she has been leading and developing ever since.

Faced with certain realities in the gem market world, she then created the first independent gem identification laboratory in Quebec: LLG (Lelièvre Laboratoire de Gemmologie) and then the Gemstone and Jewellery Appraisal Centre.

These three entities were grouped together in 2021 to form the iGEM (Institut de Gemmologie de Montréal).

Her objectives are to promote gemmology and to actively participate in the recognition of this discipline, whether through teaching or the authentication and appraisal of gems and jewellery.
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After launching her jewellery line at the age of 15, Alisson stayed in the gem world. She has traveled extensively to gem-rich locations.

Passionate about gems, Alisson completed her Gem-A training at the EGM and became a gemmologist. She started as a teacher and then specialized in the correction of final exams for the Gem-A and WGF diplomas.

She also focused on the design of gemmology exams, so that they reflect the level of knowledge and skills required of a future gemmologist.