• August 1986:  Chief of Staff of the Governor of Antwerp

 

• 1990: International Diamond Broker at Bonas & Co., the number one DTC broker of De Beers

 

• 1992:  Managing Director of the Antwerp Diamond Bourse

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• June 1999: Elected Member of the Flemish Parliament for VLD (resigned to become MD of HRD before taking the oath)

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• 1999:  Managing Director to the HRD (now AWDC - Antwerp World Diamond Centre)

 

• 2000:  Co-founder of the Kimberley Process Certification Scheme

 

• 2007 – January 2018:  Special Advisor–Diamonds at Dubai Multi Commodities Centre (DMCC)

 

• Author of the Master Plan for Dubai’s diamond sector (between 2006 and 2011 Dubai's diamond trade grew from 10 billion to 39 billion US dollars)

 

• 2007 – 2024: President of the International Diamond Laboratories (IDL)

 

• 2009 – January 2018:  Chairman of the Board of Directors of the Dubai Diamond Exchange (DDE)

 

• 2012 – present:  Member of the Executive Committee - World Federation of Diamond Bourses (WFDB)

 

• 2016 – January 2018: Chair of the Kimberley Process Certification Scheme Monitoring Team for the Central African Republic​

 

• 2018 – April 2020: President of the World Diamond Mark (WDM)

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• Present: Honorary Chief of Staff of the Governor of the Province of Antwerp

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• Present: Honorary Chairman of the Dubai Diamond Exchange

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• Present: Special Advisor to the Ministry of Mineral Resources, Petroleum and Gas of the Republic of Angola and for the establishment of an Angolan diamond exchange