A diamond dealer examines the quality of a diamond using a microscope during the International Diamond Week (IDW) in the Israeli town of Ramat Gan, east of Tel Aviv, on January 28, 2019. - Some 360 buyers from 30 countries and over 150 diamond companies are exhibiting from Israel and abroad at the International Diamond Week in Israel (IDWI) at the Israel Diamond Exchange. (Photo by JACK GUEZ / AFP)