Home Video Zimbabwean diamonds to contribute $1 billion a year by 2023. Video Zimbabwean diamonds to contribute $1 billion a year by 2023. By Jeoffrey Ncube - March 27, 2019 1671 0 Facebook Twitter Google+ Pinterest WhatsApp Mines and Mining Development Minister Winston Chitando revealed that the country’s mining industry is destined to increase in size with diamonds alone expected to contribute $1 billion a year by 2023. Subscribe For Latest UpdatesSign up to get the latest GreatDyke news updates Invalid email address We promise not to spam you. You can unsubscribe at any time.Thanks for subscribing!