Diamond is a mineral form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is a tasteless, odorless, strong, brittle solid, a poor conductor of electricity, …

Diamonds are among nature’s most precious and beautiful creations. Diamond forms under high temperature and pressure conditions that exist only about 100 miles beneath the earth’s surface. …

May 15, 2026 · A diamond is a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, …

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Use our diamond search feature to find IGI and GIA-graded conflict-free loose diamonds for engagement rings, jewelry and more. Browse thousands of options and use the filters to narrow …

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Diamond[a] is a gemstone formed by cutting a raw diamond. Diamonds have high monetary value as one of the best-known and most sought-after gems, and they have been used as decorative items …

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Since then, diamond knowledge has grown steadily, with research by chemists, physicists, geologists, mineralogists, and oceanographers. In the past 50 years alone, scientists have learned a lot about …

In nature, diamonds are created within Earth’s mantle at depths exceeding 120 kilometers (75 miles) where temperatures soar and pressures are immense. Over billions of years, carbon atoms bond in a …