Agate 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 agate prices
- Metal Prices: pushing prices up
- News & Events: weighing on prices
About agate
Agate is a banded variety of chalcedony, known for its striking colors and patterns formed through volcanic activity. It typically exhibits a hardness of 6.5 to 7 on the Mohs scale and is often cut into cabochons or beads for jewelry.
Where agate comes from
- Brazil (~40% of supply)
- India (~20% of supply)
- Madagascar (~15% of supply)
- Mexico (~10% of supply)
What is your agate 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.
Featured in National Jeweler
What agate jewelry is worth
The middle first-read value from GemstoneAI scans of each kind of agate jewelry. All jewelry values from real scans.
- Silver agate ring: $95, from 12 scans
How much is agate worth?
The GemstoneAI market index for agate is $11 per carat as of 2026-11-09. 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 agate is real?
Visual tests alone are unreliable. GemstoneAI identifies the stone from a photo, shows what else it could be, and estimates market value. It is free to try.
Is agate a good investment?
Over the past 30 days the agate index moved 0.0%. Gem prices move on supply, demand, and metal markets; treat any single stone as a collectible first and an asset second.