DFI's professional staff and its contractual service providers combine financial market acumen and experience, with an in-depth understanding of the gemstone sector. The front office includes expert financial market managers, analysts and investment advisors, while the back office brings together diamond specialists with direct access to the international loose gemstone markets.

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Norbert Ebert
Chairman of the Board
Norbert Ebert
Chairman of the Board

After 30 years of involvement in the business community, most of it in a senior position at a multinational corporation, Norbert Ebert,  a member of the Board of Directors of DFI Switzerland AG, has rich experience in a variety of sectors, including cosmetics, biotechnology, chemicals and pharmaceuticals, publishing and art. For 16 years he served as a member of the board of directors of a corporation in Switzerland’s financial industry, gaining knowledge and experience of the diamond as an asset class.

Arik Herman
Chief Investment Officer
Arik Herman
Chief Investment Officer

With 25 years of international trading experience in the diamond and gemstone industries, Arik Herman is the third generation of his family in the jewelry business. He is the founder and CEO of Caprice Int., Hungary’s leading jewelry brand, and for six years served as General Manager of the National Diamond Center, Jerusalem, Israel. Arik is a specialist in the acquisition of diamonds and gemstones for unique jewelry creations, catering over the years to world leaders, noble families and numerous high net worth individuals. A certified gemologist and diamond expert, Arik is a member of the U.S. National Association of Jewelry Appraisers (NAJA) and the Gemmological Association of Great Britain (Gem-A).

Amnon Gnessin
Senior Advisor
Amnon Gnessin
Senior Advisor

A diamond specialist for 35 years, in addition to serving as an advisor to DFI Switzerland AG, Amnon Gnessin has headed the diamond purchasing department at Caprice Hungary since 2005. Prior to that he held senior positions in diamond trading firms in Ramat Gan, Israel, and Houston, Texas, as well establishing his own company in New York. A trained gemologist, Amnon is a member of the Israel Diamond Exchange and of the American Gem Trade Association.

Chris T. Mueller LL.M.
Senior Advisor Operations and Controlling
Chris T. Mueller LL.M.
Senior Advisor Operations and Controlling

With more than 20 years of experience in the international financial services industry, in addition to serving as a Senior Advisor Operations and Controlling for DFI, since 2008 Chris T. Mueller has provided advisory services through his own company, ICoSS LLC, Investment Company and Solution Services.  Prior to that, he spent 14 years at Credit Suisse, where he worked in senior positions in the investment banking, private banking and asset management divisions, focusing on legal, compliance and alternative investment product structuring work. Chris studied political science, economics and law in the USA, and holds a Master of Laws (LL.M.) degree in American Banking and Financial Law from Boston University.