Gold and gold jewellery

Gold and gold jewellery

Let's start with a little anecdote showing how gold is an extraordinary metal: Gold atoms have the property of being able to move away from each other while remaining united. This is called ductility. By stretching a gram...
The opal or rather the opals...

The opal or rather the opals...

The opal always captivated me. As a child, I used to gaze greedily at the multicoloured fires emerging from the milky background of my grandmother's ring... And this, long before Dior or the great jewellers of Place Vendôme put it back on stage. This...
Tanzanite

Tanzanite

Tanzanite is an extraordinary stone. This ultramarine blue gem with purple and violet shades is fascinating and its exclusive provenance... Follow the guide! Characteristics Tanzanite is the blue variety of zoite, a calcium aluminum silicate, which is the most...
Chrysoberyl

Chrysoberyl

It was when I saw this beautiful collection of green and gold-coloured stones at the National History Museum in New York that I had the idea of paying tribute to a little-known stone: chrysoberyl. Its strange name comes from the Greek khrusos (golden) and...