The diamond is the most expensive gemstone and is also a symbol of love and commitment. It is carbon, which makes it the hardest substance on Earth and can cut other materials easily. Diamonds are mined in Africa, Australia, Brazil, Canada, Russia and Namibia. We are major suppliers of gold bars and rough diamonds. If you need gold bars, copper cathodes, and rough diamonds, please feel free to contact us for more information about our products and prices. We also have other precious minerals available for sale including tantalite ore, mercury, zinc ingots, scrap metals and more. Contact us today!