The world we have created is a product of our thinking; it cannot be changed without changing our thinking.  Albert Einstein 



The Coloured Gemstone Working Group (CGWG), unites luxury brands and mining companies with a common interest in catalysing positive change in the responsible sourcing of coloured gemstones.
In 2015, Tiffany & Co., Swarovski, Richemont, LVMH, Kering and Gemfields formed the CGWG. The Muzo Companies joined in 2017 and Chopard in 2019.


The Gemstones and Jewellery Community Platform is an initiative founded by the Coloured Gemstones Working Group to offer free resources and tools tailored to business of all type and size along the gemstones and jewellery supply chains. Through the platform, you can build your knowledge of key sustainability topics, implement your learning, and demonstrate your efforts towards ever-improving social, environmental and governance performance. The information, tools and resources for the Gemstones and Jewellery Community Platform have been developed by TDI Sustainability.
For more information click below.

TDI Sustainability

TDI Sustainability is a consulting firm specialised in the minerals, metals and jewellery supply chains. This expertise includes responsible sourcing, sustainable production, risk management, due diligence and auditing.

TDI Sustainability and GemCloud are working together to develop tools to support a chain of confidence.

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