diamond

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The most popular gemstone

An uncut diamond in rock

Alluvial diamond mine in Australia

History of diamond mining in South Africa

How diamonds can be made from methane

Micrograph, taken with a transmission electron microscope, showing the atomic structure of a diamond surface. A spacing of about 0.1 nanometre is clearly resolved.

open-pit diamond mine

diamond: Related Content

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Last Updated: Nov 12, 2025

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The most popular gemstone

An uncut diamond in rock

Alluvial diamond mine in Australia

Micrograph, taken with a transmission electron microscope, showing the atomic structure of a diamond surface. A spacing of about 0.1 nanometre is clearly resolved.

open-pit diamond mine

synthetic diamond

History of diamond mining in South Africa

How diamonds can be made from methane

Exploring Antwerp, Belgium

Fascinating facts about crystals

What is life like in Mumbai?

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blood diamond French Blue Nūr ol-ʿEyn Cullinan II Great Table diamond industrial diamond How Are Diamonds Made?Is Diamond the Hardest Substance on Earth?Great Star of Africa ballas sulfur fullerene zinc iron lead arsenic gold copper graphene selenium

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Barney Barnato

British financier

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Sir Ernest Oppenheimer

South African industrialist

Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.

(Bed) Rocks and (Flint) Stones

ore. iron ore minerals, rock, metal, metallic iron

Rocks, Minerals, and More Quiz