Jewelry culture
L’un des métaux les plus travaillé dans le domaine de la joaillerie et de la décoration.
Diamond is the purest of natural materials.
The Guarantee of Precious Metals and Hallmarks
The Guarantee of Precious Metals and Hallmarks in France
Rhodium: why is it so valuable?
Zircon, Zirconia and Zirconium Oxide
Zircon, Zirconia or Zirconium Oxide and Zirconium: Real and Fake Stones
Gold plating and vermeil.
Cultured diamonds, synthetic diamonds or synthetic diamonds
Natural diamonds and lab-grown diamonds are chemically and visually identical.
Stones: origins, virtues and messages
La pierre est une matière minérale, solide, dure, issue de l'écorce terrestre.