CHROME DIOPSIDE GemShoppy March 23, 2015 Gemstones Chrome Diopside is a beautiful Gem. Chrome diopside has a beautiful rich green colour and an amazingly low price. It is the most affordable gemstone. With a pure rich green colour. There are a few drawbacks. The chrome diopside is most available in small sizes: in the rare large sizes, the colour becomes so rich it is too dark. For bright green accent stones, chrome diopside is ideal. However, it is relatively soft, with a hardness of 5.5, so it is a better choice for earrings or a pendant than for a ring which will receive a lot of wear. Chrome diopside is mostly mined in Yakutia and Siberia and the liberalization of the economy of the former Soviet Union has made it more available than even before.