A market-wide average across qualities and sizes. Your stone's value depends on carat, color, clarity, cut, treatment, and origin.
Diopside is a calcium magnesium silicate pyroxene that in gem form occurs in green, brown, colorless and other hues, with chrome diopside representing the vivid green chromium-bearing variety. With Mohs hardness about 5.5–6.5 and good transparency in gem material, it is used in jewelry but requires some care in high-wear pieces.
Market averages will not price your stone. GemstoneAI identifies gems and jewelry from a photo, checks authenticity and treatment signals, and gives you a real market valuation in seconds. Free to try.
The GemstoneAI market index for diopside is $29 per carat as of 2026-08-04. That is a market-wide average across qualities, not a quote for a specific stone. Individual value depends on carat, color, clarity, cut, treatment, and origin.
Visual tests alone are unreliable. GemstoneAI analyzes a photo of your stone for identity, treatment indicators, and authenticity signals, then estimates market value. It is free to try.
Over the past 30 days the diopside index moved -2.3%. Gem prices move on supply, demand, and metal markets; treat any single stone as a collectible first and an asset second.