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Main diamond producing countries. Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond as a form of carbon is a tasteless, odourless, strong, and brittle solid that is transparent in colour, a poor conductor of electricity, and insoluble in water.
Learn about diamond, the hardest and most valuable gemstone on earth, from its formation and properties to its 4Cs and treatments. Explore research, photos, videos and buyer's guide on GIA's website.
Jul 19, 2024 · Learn about diamond, the hardest and most popular gemstone, composed of pure carbon. Find out how diamonds are formed, mined, cut, and used in jewelry and industry.
Learn about diamond's unique chemical composition, crystal structure, and formation process that make it a rare and valuable gem. Find out why diamond is the birthstone for April and the gem for special anniversaries.
Learn about diamond, the hardest and most durable natural substance, composed of carbon. Find out how diamonds form, how they are used as gems and abrasives, and how to identify them.
Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light —giving the diamond its characteristic "fire"—make it useful for industrial applications and desirable as jewelry.
Jul 1, 2024 · Learn about diamond, one of the most precious and valuable gemstones in the world, formed deep within the Earth's mantle under high pressure and temperature. Discover its physical and optical properties, occurrence, uses, and distribution in this comprehensive article.
