Near New York City's Diamond District, gemologist David Weinstein, who is also the executive director of the International Gemological Institute in New York, said the only difference between a lab ...
Though at first glance this store appears like all the others in the diamond district (think boxy ... according to manager Boris Trakhtman, is vastly “New York preferred.” ...
A giant 709-carat diamond unearthed in Sierra Leone has sold at auction in New York for $6.5m (£4.8m). Laurence Graff, chairman of Graff Diamonds, won the precious stone - nicknamed the "peace ...