Hyperstene baguette cut 20.45 ct

Hypersthene is a stone of the Pyroxene family and its name It comes from the Greek, "hyper" meaning "more" and "sthenos" meaning "strength" or "power". It is composed of iron and magnesium silicate and is formed in magmatic rocks. Its color remains predominantly black, but can vary towards brown and can present some gray-silver reflections; just like this one proposed for sale