Originally derived from the Latin word "Molochitis", which literally means "Mallow", the malachite stone is one of the earliest known gems to men and is estimated to be more than 10 millennia ...

Exotic stone dial watches are staging a comeback: why vintage and modern models by Piaget, Audemars Piguet and Rolex – adorned with stones such as jade, onyx and malachite – are in great demand ...