One of the world’s largest cutters and polishers of diamonds, Lev Leviev, will be a guest speaker at the Couture Diamond Leadership Conference on Oct. 14.

Leviev’s holdings include interest in several diamond mines in Angola and mining licenses in the Urals and in Namibia, where he recently opened a state-of-the-art cutting factory. Leviev and Bulgari recently announced a joint venture agreement to establish a company with the objective of further developing the diamond jewelry business of the Bulgari and Leviev group.

The two-day Couture Diamond Leadership Conference will offer a combination of keynote and interactive seminar presentations, executive best practices roundtable discussions, and networking opportunities. The by-invitation-only conference is limited to approximately 90 couture retail companies and 40 diamond suppliers/manufacturers. The conference will follow the annual GIA League of Honor Dinner on Oct. 12. For information, call (646) 654-7669.