A 133.03-carat fancy vivid yellow diamond achieved a sale price of more than $5.5 million, becoming the largest fancy vivid yellow diamond to sell at auction. This was the top lot at Sotheby’s ...

In a discovery that offers a glimmer of optimism amid a turbulent year for the diamond industry, Rio Tinto (ASX:RIO,NYSE:RIO,LSE:RIO) has unveiled a 158.2 carat yellow diamond from its Diavik diamond ...

A yellow flawless diamond weighing more than 303 carats will be auctioned without reserve in December at Sotheby’s in New York. While bids starting at US$1 million, it could fetch in the region of ...