Marcus Schmiesing is a third generation jeweller and diamond broker, who is specialized in the exclusive sales of fine jewellery. For more than 25 years he has seen many gemstones come by, and has extensively travelled the world to search the best gemstones for his clients.
Dr. Arnold Vahlbruch is a general practitioner, who has also studied mineralogy and physics. As a certified diamond grader and physicist, he has a tremendous insight into the precision which combined with nature makes diamonds so fascinating and at the same time objects of beauty.
Our external consulting graduate gemologist David Hessels runs a laboratory in Soest, and has more than 14 years experience as an appraiser and state licensed auctioneer.His laboratory is situated 25 kilometres from our offices, which heightens our level of efficiency.