A market-wide average across qualities and sizes. Your stone's value depends on carat, color, clarity, cut, treatment, and origin.
Serpentine is a group of hydrous magnesium silicate minerals that often occur in massive, fibrous or platy aggregates. Colors range from yellow-green and olive to dark green and nearly black, sometimes mottled, veined or marbled. With Mohs hardness typically 3–6 depending on variety and good toughness in dense forms, serpentine is used mainly for carvings, cabochons and ornamental objects.
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 serpentine is $4.80 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 serpentine index moved +0.2%. Gem prices move on supply, demand, and metal markets; treat any single stone as a collectible first and an asset second.