Business: Diamonds Net worth: $5.6 billion Laurence Graff, founder of the world‐famous Graff Diamonds, was born in Stepney, London, in 1938. He left school at 15 and became an apprentice jeweller. He then went into partnership with Schindler’s jewellery shop, where he repaired rings and items of jewellery. He began selling his own designs independently …











