A cousin of Qatar's ruler lost his fight at London's High Court on Thursday against another branch of the Gulf nation's royal family over a 17th century diamond worth millions.

Using diamond-based tools, Dr. Altman's team simulates extreme underground and planetary conditions by applying pressure to a central crystal, creating new materials and observing real-time chemical ...

Botswana's economy is forecast to grow by 3.3% in 2025 due to an expected recovery in the global diamond market, Finance ...

Six out of 10 people in our poll said the unfinished Diverging Diamond isn't working. But others want to see how its going when it's finished.