Opal 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 opal prices
- News & Events: pushing prices up
- Metal Prices: pushing prices up
About opal
Opal is renowned for its unique play-of-color, displaying vibrant hues that shift with light and angle. It typically has a hardness of 5.5 to 6.5 on the Mohs scale and is often cut into cabochons to enhance its visual effects.
Where opal comes from
- Australia (~55% of supply)
- Ethiopia (~25% of supply)
- Mexico (~10% of supply)
- Brazil (~5% of supply)
What is your opal 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 opal worth?
The GemstoneAI market index for opal is $199 per carat as of 2026-08-17. 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 opal 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 opal a good investment?
Over the past 30 days the opal index moved +8.3%. Gem prices move on supply, demand, and metal markets; treat any single stone as a collectible first and an asset second.