The Gemstone Diopside
Diopside has been regarded only as a collector's gemstone until recently, when the deep forest-green Chrome Diopside variety has made its way into the mainstream gemstone market. Although its intense green color rivals that of Emerald, its low hardness makes it prone to scratches, thus limiting it from overwhelming the gemstone industry.
Green, Yellow, Brown, Black
5 - 6
Although Diopside occurs in a variety of colors, the green color is the
most common form. A purple type known as Violane
used as a gemstone, and Star Diopside
is very dark green to black. But the form of this stone that puts this gemstone on the map is the deep green Chrome Diopside
Chrome Diopside in limited quantity is known from several localities, but a large commercially exploitable deposit discovered in Siberia in 1988 made this gemstone readily available to the market. Since then, Pakistan has also become a signficant producer of Chrome Diopside. Chrome Diopside is an affordable gemstone that has an intense forest-green color which rivals that of more expensive Tsavorite
and Green Chrome Tourmaline
Deep green color combined with transparency give a stone more value. Except in lighter colored stones, the faceting of larger cuts is generally avoided because the deep green color tends to make its tone too black. Careful cutting is also necessary in larger stones to keep the facet angles shallow to improve brilliance. The deep green color of Chrome
Diopside is natural and not enhanced.
is faceted into gemstone cuts mainly for earrings and pendants. It is generally not used for rings and bracelet due to its low hardness. Star Diopside
and the purple variety Violane
are faceted into cabochon
s mostly as collectors gems.
Treatments & Enhancements
Diopside gemstones are natural and not heated or enhanced.
Diopside of facetable nature comes from Italy, Austria, Finland, Tanzania, Madagascar, Mynamar (Burma), China, and the U.S. (New York). The source of most gem
is from Russia, but other deposits also exist in Pakistan, Afghanistan, and Finland. Violane
is primarily from Italy, and Star Diopside
has a similar color to both Tsavorite
and Chrome Tourmaline
, but is softer than those gemstones. The color is also a more forest-green hue than Emerald
Diopside in the Rough Photos