Hadad Diamond Co.Diamond Manufacturing GroupOffice: Israel Diamonds Exchange, Diamonds Blds.54bezalel st. ramat gan P.O.B 210, Floor 3 Rooms 67-69, Ramat-Gan 52521, Israel Tel: 972-3-6131686 Fax:972-3-6131687 Factory:972-35750913 Int.Tel:5127-8-9.