Charlotte Rose has become the first female president of the London Diamond Bourse (LDB). Rose succeeds David Troostwyk, who has served as president for just over two years. He will now continue as vice president. She said: “I am honoured that the Council of Management has entrusted me with the role of President. “I am conscious, too, of what this particular election represents. The London Diamond Bourse has been trading since 1940, and I am the first woman to lead it.