When Emma Watson wore a vintage-style diamond ring on her wedding finger at Paris Fashion Week it prompted global speculation that she is about to announce an engagement - and curiosity about her fiancé. Now we can reveal that Kieran Brown, the man she has been dating for a year, is a South African who was awarded the prestigious Rhodes scholar status at Oxford previously held by the likes of Bill Clinton, Theodore Roosevelt and Dr Martin Luther King. Dr Brown, as he is now formally known after being awarded his PHD, grew up in Cape Town and moved to...