NEW YORK -- The world's most expensive diamond and ruby have been sold in the same auction -- a first in auction history. A 55-carat ruby sold for nearly $35 million at Sotheby's Magnificent ...

The most expensive diamond ever sold per carat ... “Hard assets such as world-class diamonds have a history of performing well even in times of instability,” he said. “Some of the world ...

The azure stone was purchased by a private collector in Hong Kong, who named it the Zoe Diamond. At the time, it wasn't only the world's most expensive blue diamond but also the world's most ...

Most Expensive Diamond: As the world’s most expensive diamond ever sold at auction, Pink Star has certainly made a name for itself. It has unmatched colour, clarity, size, and cut. Read further ...

The Eternal Pink gem achieved a world record for a “fancy purplish-pink diamond.” The stone featured a cushion mixed cut and was set as a size six-and-a-half ring. It was flanked by ...

Take a look at the 10 most expensive diamonds in the world Koh-i-Noor- This 105.6 Carat Diamond has been given 'priceless' status due to its uniqueness and brilliance ...