DAUMET is a gold alloy designer.

We propose to worldwide costume jewelry groups the first shiny white gold in the world (CNRS patent): precious, cheaper and more sustainable coating process (PVD).

We use this innovation and mix it with ancestral know-how to propose to luxury Maisons an innovative and precious customization service on luxury matters.

Our value proposition :

An exceptional quality

For example, a white gold never obtained in term of color and brilliance.

A better wear resistance

Tungsten alloy are harder than current palladium gold alloys.

A durability gain in comparison with rhodium.

A guaranteed health

No problem with allergy or certification.

For a sustainable jewelry

By substituting critical raw materials by a more abundant element, we participate to reduce the carbon footprint of luxury processes and decrease the energy consumption and pollution.

To the first white gold plated jewels
  • First shiny white gold in the world, 18k and 14k
  • Licensing of the PVD coating process
  • Implementation of the process in partnership with our customer
Service of luxury products customization
  • For your specific needs and creative challenges.
  • Gold alloys development to fit the color, the rendering and the wear resistance you need.
On luxury matters
  • Whatever the matter you work, we adapt ourselves.
  • Leather, wood (marquetry), silk, textiles, metals, polymers, glass,…
  • Thanks to our acquired experience on a large diversity of matters, your creativity is our only guide.

The future of massive white gold

The Daumet team is currently working on providing its exceptional white gold in other manufacturing processes such as powder sintering or casting.

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