"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." How does a jeweler find the best way to showcase a selection of rare stones? For Monica Rich Kosann, ...

The gemstone opal could be manufactured synthetically copying a technique employed by a beetle to control the appearance of its outer shell. Researchers from the Department of Zoology at the ...

We take a close-up look at the latest high jewelry from Tiffany & Co., Van Cleef & Arpels, and more that marry vivid gems ...

How does a jeweler find the best way to showcase a selection of rare stones? For Monica Rich Kosann, whose high jewelry ...