On top of it, the marketplace for diamonds can be really confusing. There are grades of clarity and color that lead to an overall quality rating. And, of course, diamonds are very expensive. The ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. South African diamond used in the study showing growth rings ...

Deep below the surface of our world, far beyond our feeble reach, enigmatic processes grind and roil. Every now and then, the Earth disgorges clues to their nature: tiny chthonic diamonds encasing ...

Washington, DC--New research from a team including Carnegie's Steven Shirey and Jianhua Wang explains how the world's biggest and most-valuable diamonds formed--from metallic liquid deep inside ...

Carl Walsh holds a QUT postgraduate research award (PRA) scholarship. Balz Kamber receives funding from the Australian Research Council for Discovery Grant DP220100136 for work that will build on the ...

Diamonds are fascinating - as jewellery but also because of the extreme hardness of the material. How exactly this variant of carbon is formed deep underground and under extremely high pressures and ...

Two materials, lonsdaleite and wurtzite, have just been recognized as being harder than diamonds. Lonsdalite, similar to diamonds that its made from carbon, is formed during asteroid impacts, and is ...

Despite being around since the 1950s, lab-grown diamonds have only recently exploded in popularity. Allied Market Research states that, in 2022, the global diamond market was valued at $100.4 billion ...

Pink diamonds are extremely rare and coveted — a now-closed mine in Australia has been the source of 90% of the colored gemstones. Polished pink specimens of the highest grade can sell for tens of ...