Nuummite Value & Market Price
A market-wide average across qualities and sizes. Your stone's value depends on carat, color, clarity, cut, treatment, and origin.
What is moving nuummite prices
- Metal Prices: weighing on prices
About nuummite
Nuummite is a rare, dark metamorphic rock composed mainly of amphiboles such as gedrite and anthophyllite, often with fine, iridescent lamellae of other minerals that produce a striking, metallic flash. Typically black to very dark brown, it exhibits golden, bronze, blue or multicolored schlieren and streaks that shimmer with movement. With Mohs hardness around 5.5–6 and a granular structure, it is suitable for cabochons and carvings but requires some care in wear.
What is your nuummite worth?
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.
How much is nuummite worth?
The GemstoneAI market index for nuummite is $38 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.
How can I tell if my nuummite is real?
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.
Is nuummite a good investment?
Over the past 30 days the nuummite index moved +0.4%. Gem prices move on supply, demand, and metal markets; treat any single stone as a collectible first and an asset second.