DUBAI: Pop star Mariah Carey accepted the Vanguard Award at Sunday night’s MTV Video Music Awards in a $10 million diamond set by Antwerp-based, Lebanese-founded high jewelry house Levuma. Founded by Ali Khalil in Antwerp in 2016, the jewelry house has a long tradition in the diamond industry, beginning with Khalil’s great-grandfather. In the 1930s, Khalil’s great-grandfather began trading rough diamonds in Sierra Leone.