A team of Tiffany gem cutters spent a year turning the rough stone into a 90-facet, 128.54-carat gem. The Tiffany Yellow Diamond is perhaps best known as the necklace that Audrey Hepburn wore in ...

Chopard on Thursday unveiled a 15-piece high jewelry collection created from one rough emerald that weighed an astounding 6,225 carats. It was unearthed in Zambia and named “Insofu,” which ...