« Welcome to the DuoDeci Gem platform, featuring specialists from the world of gems. Discover the world of these enthusiasts, their specialties and the stones they present. Get direct access to their site for greater efficiency in your searches. You too, professionals of these universes, are welcomed to join us…

A story of passions


Arnaud Pradat, Meilleur Ouvrier de France en Joaillerie depuis 1994

Born from a desire to revolutionize the jewelry world, the web platform DuoDeci Design was created in 2017 by Arnaud Pradat, MOF and jewelry teacher. Gathering talented designers, experts in their field and up and coming designers, DuoDeci Design is a place of sharing around one same passion: Jewelry.


Each stone has a story to tell and all these enthusiasts will help you in your research.

Grouping dozens of enthusiasts, craftsmen, lapidaries, photographers, gemmologists, traders, brokers, etc., this "directory" is a place of exchange and sharing where everyone has its place to make us discover what nature has to offer.

  • Sharing of creations.
  • Choice of gems.
  • Directory of professionals.
  • Contests.
  • Multi lingual web site.
  • Your promotion on our social medias.


After the success of DuoDeci Design, it seemed obvious that I had to pursue the adventure with a site devoted to gems, which makes possible putting even more in light the gems essential to the designers, craftsmen, jewellers, artists...

I hope that this platform becomes a place of information that, thanks to its operation, allows the creation of extraordinary jewels.

Arnaud Pradat


DuoDeci Gem has full confidence in the specialists present on the website. We believe that differences are a source of wealth.


DuoDeci Gem promotes new synergies based on collective intelligence and co-creation with DuoDeci Design. We believe that it is at the crossroads of knowledge that the greatest creativity lays.


Because DuoDeci Gem kindly presents our specialists, we attract enthusiasts. We take care of them by creating bridges with DuoDeci Design to highlight the branch.

Share your emotions and your passions, make us dream.