Our expertise
From gold refining to rough diamond trading, discover UMA S.A's areas of expertise.
Precious metal refining
Cutting-edge technologies to refine gold, silver and other precious metals to a purity of up to 99.99%.
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Rough diamond trading
We facilitate access to rough diamonds from verified sources, in line with the Kimberley Process.
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Innovation and excellence
We invest in research and development to stay at the forefront of technology.
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Global partnerships
Strong partnerships around the world to secure reliable supply and international outlets.
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Need help acquiring precious metals or rough diamonds?
Our experienced teams answer your questions, guide you through the buying process and offer solutions tailored to your needs.
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