Tiffany Trump's billionaire fiancé Michael Boulos proposed to her with a 13-carat emerald-cut diamond from Dubai that is believed to be worth up to a staggering $1.2 million. In exclusive pictures obtained by DailyMail.com, Tiffany, 27, is seen proudly showing off the stunning ring, which was designed by New York-based jeweler and diamond dealer Samer Halimeh, who works 'for the one per cent of the one percent'. A spokesperson for ...