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Mark van Keuk

Auctioneer Diamonds

Diamond is the most fascinating material that I know. No one stone is the same.

Mark van Keuk

Mark van Keuk came into contact with diamonds when he started his degree in goldsmithing, inspired by his brother. He soon noticed his passion for the profession and for diamonds which fascinated him to no end. After his education, he started working as a diamond setter at a large diamond dealer in Amsterdam. After twelve years, he became a buyer and spent a lot of time in Antwerp. In this centre for diamond trade he acquired many international contacts and has assessed thousands of diamonds.

After all these years of experience, Mark van Keuk is the appointed auctioneer for the diamond auction. He knows what's happening in the market and he knows the requirements diamonds need to meet. He examines each diamond and its accompanying certificates thoroughly before approving them for his auctions. His previous work experience has enabled Mark van Keuk to effortlessly compose interesting auctions. He likes to guide the buyers by answering questions and erasing their doubts. This way, every diamond enthusiast can bid on his auctions with confidence.

  • More than 35 years' experience
  • Degree in Goldsmithing
  • Has worked as a diamond setter and diamond buyer

Closing today

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How to sell through Catawiki

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    Register for seller privileges free of charge. You can offer up as many objects as you wish with a minimum estimated value of 75 euro.

  2. 2. Submit items

    Once your items and descriptions have been approved by our auctioneers, they are scheduled for auction.

  3. 3. The thrill of auction

    Experience the excitement as bidders from all over the world place their bids on your submitted items!

  4. 4. Make money safely

    You won’t be asked to ship your items until the buyer has transferred payment. Catawiki manages payments between buyers and sellers.

The advantages of Catawiki’s auctions

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  • Secure payment format

  • International bidding audience

  • Auctioneer supervision

  • Optional reserve price for expensive items

  • Professional customer service

  • User friendly

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