Leviev has launched its flagship store for diamond jewellery on Madison Avenue. The store is a two-storied outfit spanning over 6,200-square-feet, designed to give the aura of an elegant private salon. Amongst the ornaments to be retailed, Leviev has displayed over 5,000 carats of white and colored diamonds, two rare red diamonds and a collection of unique pieces valued at over $10 million per item.%%Leviev intends to open a store in Moscow next month. The launch at Madison Avenue was attended by Leviev Group Chairman Lev Leviev and Leviev President & CEO Thierry Chaunu, New York socialites and other celebrities.