RAPAPORT… Zimbabwe plans to reduce the percentage of sales diamond miners must pay to the state, aiming to encourage companies to invest in the Marange fields.
The government proposed a new royalty rate of 10% in the
annual budget last week. Diamond producers currently pay 15% of gross revenues,
but their overall costs have escalated as they shift toward hard-rock — or
“conglomerate” — mining, which is lucrative but expensive.
The change could benefit companies such as Russia’s
Alrosa, which is exploring for rough in the country, as well as Botswana
Diamonds and Vast Resources, which operate a joint venture at the Marange
fields.
“The royalty rate of 15% on diamonds was set during the
period when mining was predominantly alluvial, and extraction cost was
relatively low,” Mthuli Ncube, minister of finance and economic development,
explained in his budget statement. “However, diamond miners are [now] exploiting
conglomerate deposits, hence the cost of extraction has significantly
increased.”
Last year, the state-owned Zimbabwe Consolidated Diamond Company installed a crushing plant at Marange to help it process the harder rock. The nation plans to increase its annual production to 11 million carats by 2023, from 3.2 million carats in 2018, Reuters reported last month.
The state intends to introduce the lower royalty rate on January
1 with the goal of attracting investment in exploration and extraction. The
country has also made progress in its plans to repeal an “indigenization” law
limiting foreign ownership of diamond and platinum mines, Ncube continued.
Image: A stone from Zimbabwe during Rough Diamond Week at the Israel Diamond Exchange in 2016. (Shutterstock)
Zimbabwe to Take Smaller Cut of Diamond Sales
The Bottom Line
- Zimbabwe proposes reducing diamond royalty rates from 15% to 10% starting January 1 to encourage mining investment.
- The shift to more expensive hard-rock mining in Marange has increased extraction costs, prompting the royalty adjustment.
- Companies like Alrosa, Botswana Diamonds, and Vast Resources stand to benefit from the lower royalties and eased foreign ownership rules.
Summary by Rapaport AI
More Stories

Qatar Diamond Exchange to Collaborate with Italian Bourse
Parties signed MoU to extend connection among their members, broaden cooperation and advance commercial relationships.

China Signs Deal to Reinvigorate Interest in Natural Diamonds
Shanghai Diamond Exchange hosts signing of Beijing Declaration, with government representatives from Botswana, Namibia and South Africa.

AI, Gen Z Are Hot Topics at AGS Conclave
This year’s edition is last to take place in September, as event returns to spring in 2027.
