The DAUMET’s trade: gold alloy designer.


Our principal product: the whitest 18k gold alloy, destinated to fabricate the first white gold plated jewels.


Our know-how: we develop innovative and sustainable gold processes and propose today to the luxury Maisons a bespoke gold coating service to magnify and personnalize their products.


The whitest 18k white gold

    • For the first time, DAUMET proposes an alloy between gold and tungsten, the hardest metal. This 18k innovative alloy is the withest one ever fabricated.


    • It associates also a nice brilliance, good wear resistance and lower price and then becomes able to the fabrication of the first white gold plated jewels.


    • By substituting palladium and rhodium by tungsten, much more abundant in the earth, DAUMET participates to decrease the environmental impact of jewelry and preserves critical raw materials for the future generations.


Embellish your matters
  • On wood, leather, textile, metals, ceramics…
  • After discussing your needings, we study your project and develop the bespoke gold processes.
  • From yellow to white, from mat to shiny…we’re leading by your requirements.
Customize your creations
  • Coming from microelectronics, we master with a high precision the definition of patterns until 50 microns.
  • A rare know-how to develop exceptional pieces.
Engaged in a sustainable approach
  • By using less polluting processes and elements, we help you to decrease the environmental impact of your products .
  • Our technology is supported by the European Union.

A team with complementary skills


  • CNRS research Engineer
  • Gold-tungsten alloy Inventor
  • 18 years’ experience with gold in chemistry and microelectronics
  • Innovative entrepreneurship formation: HEC, Challenge+ program

Cyrile Deranlot

  • PhD in Material Sciences
  • Working on gold-tungsten alloy further development
  • Product development

Rachid Boujamaa
Technical Manager

  • Certified Jeweller
  • Master in Social sciences
  • Certified project manager
  • 15 years’ experience in product development and marketing (watches & jewellery)

Marine Kohler
Marketing consultant

  • 2007 Nobel Prize in Physics
  • Initiator of the research on gold-tungsten alloy in spintronics

Albert Fert
Scientific Committee

  • International expert in gold metallurgy
  • CEO
  • Previously CLAL Technical Director

André Behlouli
Scientific Committee


THANKS to all academic, institutional and industrial supporters who have been with us since the beginning of this adventure.

Prizes and Awards

Selected for La Maison des Startups from LVMH at Station F (2018)
Winner of Techinnov2018 start-up challenge in the Luxe&Retail category
Finalist for CleanTech Open France 2017
Finalist for LVMH Innovation Award 2017
Top 3 at Start-up Connexion 2017
HEC Challenge+, 3rd best business plan prize,  promo 2014-2
ILab2014 prize, Emergence category


Interested in our activities? Get in touch with our team.


The name “Daumet” comes from the ancient French daurare meaning “to gild” and the latin meta meaning “change”. It demonstrates the company’s commitment in combining traditional know-how and modern technologies while respecting future generations.

9 rue Clodion, 75015 Paris, FRANCE

+33 6 62 07 50 48