Important British diamond dealer and retailer. Laurence Graff is considered by many to be Harry Winston’s heir; the new “King of Diamonds.” In 1962, Graff opened a small shop in London. He is known for important diamonds including the Grand Coeur d’Afrique, a seventy-carat, heart-shaped, flawless diamond as well as The Empress Rose, a flawless, pink, pear-shaped diamond just under ninety carats.¹ Graff also handles exceptional colored gemstones. At his retail stores, which now span the globe, Graff sells modern, gem-focused jewellery.