Friday, November 18, 2011

Gemstone of the Week: Diopside

Diospide can come in a variety of colours, but the best known variety of Diopside is Chrome Diospide which is an intense deep green (think astroturf green).  However, Diospide may also be colourless, pale green, brown, and sometimes even blue or violet.  There is also a black star variety that is found in India.  The star is generally a four ray star, but sometimes six ray stars are also found.  Diopside is a hardness 5.5-6.5 and is never treated as it will melt under a jeweler's torch and does not react well to chemicals either.  The value of Diopside ranges from $30-$200 per carat depending on the size and quality of the stone.  If you have any Diopside jewelry, clean it with warm soapy  water as it is not safe to use ultrasonics to clean them.