A first-ever cooperative effort between the United States and Israel is adding the sparkle of diamonds next week to the floor of the Bourse, the Israel Stock Exchange building. Polished diamonds worth more than $1 billion will be offered for sale at a trade show to be held on the trading floor of the Israel Diamond Exchange (IDE) in Ramat Gan. More than 150 Israeli firms have signed up for the first-ever U.S. / International Diamond Week trade show, where a wide range of the polished stones will be on display and for sale.