Naseeb Abdul Juma Issack (born 2 October 1989), popularly known by his stage name Diamond Platnumz, is a Tanzanian bongo flava recording artist, actor, dancer, philanthropist and a businessman from Tandale, Dar es Salaam. He is the founder and CEO of WCB Wasafi Record Label, Zoom Extra, Wasafi TV, a Tanzanian media outlet, and Wasafi Fm. Diamond Platnumz is among the most popular artists in East and Central Africa. He is the first Africa-based artist to reach a combined total of 900 million YouTube views. Diamond is one of the top earners in the African Great Lakes region's music industry. In 2021, Diamond together with his record label WCB Wasafi entered into a 360 Partnership with Warner Music Group.