The second was a sapphire and diamond pendant necklace that sold for $312,500, centered with a 40.07-carat cushion-shaped Ceylon (Sri Lankan) with no indications of heat or clarity enhancement.

Diamond and Sapphire Jewel Found at Old Plane Crash Site Mark Rubinstein is on a mission to locate the rightful owner of a lost jewel.

GIA developed this guide so retailers can use fluorescence tests to help identify gems right in their own stores.

Researchers have uncovered strong evidence that the ancient Chinese used diamonds to grind and polish ceremonial stone burial axes as long as 6,000 years ago -– and incredibly, did so with a ...

Long before Prince William proposed to Kate Middleton in 2010 with a sapphire and diamond engagement ring, that ring was ...