ITALIAN STALLIONS: Roberto Faraone Mennella and Amedeo Scognamiglio are in London this week, talking about their expansion plans. Their first Tokyo store is set to open next year, and there are plans in the pipeline to open more stores in Europe. The two are also working on a collection of accessories that includes belts, scarves, and bejeweled boxes slated to launch at the end of this year or early next year. “We really built this business through the women who love the jewelry,” said Scognamiglio during a cocktail party at the brand’s Knightsbridge boutique, which opened two years ago. “For us, it’s about the brand and the women. They’re the ultimate test.”