A market-wide average across qualities and sizes. Your stone's value depends on carat, color, clarity, cut, treatment, and origin.
Alexandrite is renowned for its remarkable color-changing properties, exhibiting hues of green in daylight and red under incandescent light. It has a hardness of 8.5 on the Mohs scale, making it suitable for various jewelry applications, and is commonly cut into oval and cushion shapes to enhance its unique optical effects.
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 alexandrite is $15,361 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 alexandrite index moved +2.4%. Gem prices move on supply, demand, and metal markets; treat any single stone as a collectible first and an asset second.