A rare 10-carat blue diamond from South Africa drew global attention at Sotheby's $100 million diamond exhibition in Abu Dhabi. The gem could fetch $20 million at auction in May. Listen to Story Rare ...

Her mind-blowing 24-carat emerald-cut diamond ring was reportedly worth almost $5 million at the time. Among Hilton’s other famed rings, was a 20-carat pear-cut stone from actor Chris Zylka.

ABU DHABI, United Arab Emirates (AP) — A rare blue diamond was displayed Tuesday at an exhibition of $100 million worth of the world’s rarest diamonds in the United Arab Emirates’ capital ...

ABU DHABI – A rare blue diamond was displayed Tuesday at an exhibition of $100 million worth of the world's rarest diamonds in the United Arab Emirates’ capital, Abu Dhabi. The eight diamonds ...