Siobhán Duffy

CEO, Element Six at De Beers Group

Siobhán has more than 30 years of experience at Element Six, working across the organisation from production and quality control through to business management and innovation. Prior to being appointed Chief Executive, she was Executive Director for Sales & Marketing from 2018 and Executive Director, Innovation from 2014. She held a variety of senior management positions before this time, including heading the Oil & Gas business unit.

Siobhán has an MBA, as well as an Advanced Diploma in Analytical Science and an Advanced Diploma in Quality Management.


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De Beers Group

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The world's leading diamond company, with unrivalled expertise in the exploration, mining and marketing of rough diamonds driving it forward since 1888.


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