From a Persian prince to the American “jeweler to the stars,” the world’s largest cut blue diamond has a lengthy history.

The pale blue stone has passed through the hands of royals, art collectors, sultans and aristocracy – but who does it belong ...

A member of Qatar’s ruling family has failed in his attempt to force a rival royal faction to sell him the world’s largest ...

Irth Capital Management, backed by Qatari royal Sheikh Mohamed bin Abdulla Al Thani is reportedly exploring a take-private ...

The dispute over the "Idol's Eye" diamond pitted art collector Sheikh Hamad bin Abdullah Al Thani, cousin of Qatar's ruler ...

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 ...

A Qatari royal and a takeover pro have teamed up and are mulling a bid for the struggling $1.4 billion pizzeria.

Papa John's (PZZA) shares have shot up by nearly 20% in Thursday's trading upon reports that the Qatar royal family is eyeing ...

(Reuters) - President Donald Trump toured a Boeing plane on Saturday to highlight delays in delivering new Air Force One ...

Shares of Papa John’s (PZZA) are up nearly 20% on speculation that an investment fund backed by a member of Qatar’s royal family is considering ...

Irth Capital Management, an investment fund backed by a member of Qatar’s royal family, has spoken with advisors about making a take-private ...

The Idol’s Eye, a precious 17th Century gemstone, became the center of a dispute between art collector Sheikh Hamad bin ...