He is best known for his hit song "Number One". He performed at the Big Brother Africa 7 eviction show in May 2012. Diamond is considered influential among his fans, and is said to be the most loved and decorated Tanzanian artist at the moment.
He was believed to be the highest selling Tanzanian artist of ringtones by mobile phone companies in 2013, as well as being among the artists earning the highest income in the African Great Lakes region"s music industry.
He also recorded a remix of his single Mbagala, titled CCM Tusonge Mbele (CCM Let"s Move Forward). Channel O Music Video HiPipo Music Top Ten Tube Music The Headies The Future Africa Nzumari Music Television Europe Music Awards/WORLDWIDE ACT AFRICA/INDIA Music Television Africa Music Black Entertainment Television African Muzik Magazine Tanzania Music Awards.