Diopside brings deep forest green at a whisper of the price of emerald — chrome diopside from Siberia’s Inagli deposit being the most celebrated. A pyroxene of hardness 5.5–6, its saturated color needs no treatment whatsoever.Our diopsides are natural, certified in the GEMIC Institute laboratory, and shown in real photos and video of the exact gem. One of a kind; tracked shipping worldwide, 30-day return period.