NEW YORK, NY - SEPTEMBER 18: Henri Barguirdjian, President & CEO, Graff Diamonds and author Ketty Pucci-Sisti Maisonrouge attend ASSOULINE, Martine and Prosper Assouline host a book signing for Ketty ... more 
NEW YORK, NY - SEPTEMBER 18: Henri Barguirdjian, President & CEO, Graff Diamonds and author Ketty Pucci-Sisti Maisonrouge attend ASSOULINE, Martine and Prosper Assouline host a book signing for Ketty Pucci-Sisti Maisonrouge's "The Luxury Alchemist" at Assouline at The Plaza Hotel on September 18, 2013 in New York City. (Photo by Dimitrios Kambouris/Getty Images for ASSOULINE) less 
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Getty Images | Photo By Dimitrios Kambouris / Getty Images for ASSOULINE
Thu, Sep 19, 2013 12:08 AM EDT