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Cathy Mawart

Expert Jewellery

I love appraising and doing estimations online

After living 15 years in New York and working in several places in the famous Diamond District, on the 47th Street, Cathy decided to change direction. She moved to France and became an expert in jewellery at Catawiki.

Cathy is passionate about modern and antique jewellery: modern, because it is always made with imagination; antique, because it is a reflection of history. Although she is not a collector, in her free time she designs jewellery herself. She has vast knowledge about the materials and the stones. Her fascination with diamonds is difficult to hide. ‘Diamonds are the most natural things found on earth; there are no diamonds alike in the world,’ Cathy says.

Since Cathy joined Catawiki, she has focused on screening and appraising lots, bringing new ideas to the table and taking the jewellery auctions to the next level, together with her team. With her skills and experience, users can be sure that all objects found in the jewellery auctions are truly unique.

  • GIA New York diplomas: Certified Diamond Grading Diploma, Advanced Diamond Grading Certificate, Coloured Stones Grading Certificate, Gem Identification Certificate, Pearls Grading certificate
  • Alumni GIA member
  • 15 years of professional experience

Closing today

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How to sell through Catawiki

  1. 1. Seller registration

    Register as a seller for free. You can offer up as many special objects as you wish that are of premium quality.

  2. 2. Submit items

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

  3. 3. The thrill of auction

    Experience the auction excitement as thousands of enthusiasts discover your lots!

  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

  • High revenues

  • Swift sales

  • Secure payment format

  • International bidding audience

  • Supervised by our experts

  • Optional reserve price for expensive items

  • Professional customer service

  • User friendly

Start selling now

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