A rare square 37-carat emerald owned by the Aga Khan fetched nearly $9 million at auction in Geneva on Tuesday, making it the ...
A rare square 37-carat emerald owned by the Aga Khan fetched nearly nine million dollars at auction in Geneva on Tuesday, ...
Phillips, Christie's, and Sotheby's set records with Rolex, Patek Philippe, F. P. Journe and more. Industry experts tell us why the numbers soared.