Canadian company Groupe RSL manufactures Canada’s first synthetic diamond

MONTRÉAL–(BUSINESS WIRE)–Groupe RSL is the first company to manufacture a Canadian synthetic diamond, in its production laboratory based in Quebec. The company currently produces large diamonds for the high-end jewelry market. With sustainability at the heart of its approach, Groupe RSL is convinced that synthetic diamonds are capable of significantly reducing the environmental impacts of diamond production.

« Lab-grown diamonds have the potential to revolutionize the industry, while limiting the environmental and human costs associated with diamond production,” said Luke Sinclair, RSL Group Chief Financial Officer. “ Consumers are demanding more transparency about the diamonds they buy, and we believe the industry must align with principles of environmental protection and social responsibility. We look forward to seeing how the synthetic diamond industry evolves over the coming years. »

Groupe RSL produces its diamonds locally, in Quebec, using a CVD (chemical vapor deposition) process, in which hydrogen and methane are combined in a plasma under specific conditions to forming diamonds atom by atom, which takes between several weeks and an entire month. Powered exclusively by hydroelectric power, Groupe RSL has developed its own process to become the first Canadian company to use this approach for the manufacture of diamonds.

« For the vast majority of human scientific history, we thought it impossible to make diamonds other than under extreme pressure conditions. This is why early attempts to manufacture diamonds focused on replicating the intense pressure conditions under which diamonds are created underground,” Sinclair added. “ Recent research has put forward a new idea, which is based on the use of hydrogen and methane in a controlled reaction. »

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Natural diamonds and synthetic diamonds

Natural diamonds and synthetic diamonds are chemically, physically and optically identical, and can only be distinguished from each other with highly specialized equipment. In fact, natural diamonds often contain flaws and impurities, phenomena that can be controlled or eliminated in synthetic diamonds.

Evolution of consumer behavior

Demand for synthetic diamonds has risen sharply in recent years, with the share of synthetic diamonds more than doubling in total diamond sales between 2020 and 2022.1 Generations Y and Z are turning away from natural diamonds, and nearly 70% of millennial consumers are considering the alternative of buying synthetic diamonds.2 Consumers are also looking for greater transparency to ensure that diamonds come from responsible and sustainable sources. For example, nine out of ten Gen Z consumers are convinced that companies have a responsibility to take on environmental and social issues.

About RSL Group Inc.

Groupe RSL Inc. is an innovative diamond production company, and the only Canadian manufacturer of synthetic diamonds for the jewelry market. The company produces diamonds using a unique chemical vapor deposition (CVD) technology and process. Groupe RSL manufactures durable Canadian diamonds of great beauty in its Quebec-based laboratory, powered 100% by hydroelectric energy. Diamonds are forever, which is why the company is committed to ensuring that their ecological and social footprint is not. For more information, visit


1 Edahn Golan, diamond industry analyst. 20lab%20diamond’s%20share,be%20expected%2C%E2%80%9D%20said%20Golan

2 Millennial Consumer Research Lab Grown Diamonds, MVI Marketing LLC, 3 mai 2018.

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