Sotheby's sale of 110 lots includes important pieces from the Vanderbilt and Wade families, and a private collection in which ...

From the legendary Hope Diamond to a rainbow of colorful gemstones, a multigenerational bond between the Winston family and ...

Emerald cut refers to a particular style of gemstone cutting characterized by its long, rectangular shape and step-cut facets. While originally designed for emeralds, this elegant cut is now widely ...