Gem advances RioZim $700k, as miner unveils $10m rights issue Staff Writer 10 years ago HARARE – Gem RioZim Investments (Gem) has advanced RioZim Limited (RioZim) $700 000 as part of its subscription towards the miner’s proposed... To access this post, you must purchase a subscription. Please click the button below to visit our subscriptions page to select a package. Subscriptions