Bonhams Adds to Global Jewelry Department

Bonhams has made four new hires to its global jewelry department, two in the United States, one in Europe, and one in Asia.

Dana Ehrman is the new director of fine jewelry in Los Angeles. She is a graduate gemologist and has worked at Butterfield & Butterfield, Francis Klein, and Fred Leighton. 

Caroline Bostock has been named senior specialist in the jewelry department and will be based in New York. She is a veteran of the diamond industry in Antwerp, Belgium, and is responsible for more than $25 million in diamond sales to date.

Claire-Laurence Mestrallet joins the international jewelry team in Geneva. She is a graduate gemologist and previously worked in sales at Bonhams London.

Ellen Sin, also a graduate gemologist, will be the director of jewelry and jadeite for Bohmans Hong Kong. She has diamond dealing and auction house experience and has worked with Van Cleef & Arpels in Monaco.