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Diamond (industrial): who produces it, who holds it

Mine production by country, 2025, and reserves, from USGS (Mineral Commodity Summaries 2026 (February 2026)). Shares, ranks and concentration are computed from those rows.

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Concentration of mine production: How this is computedSum of the squares of each producer’s share of world output (0–1).Method →Code → on the Herfindahl index over the countries listed individually (a single supplier would score one). Reserves: How this is computedSum of the squares of each producer’s share of world output (0–1).Method →Code →.

CountryMine production, 2025 (million carats)2024Share · rankReserves (million carats)Share · rankExport restrictions
RussiaSourcedUSGS, Mineral Commodity Summaries 2026 (February 2026): Diamond (natural industrial) · 2025Open the source →16How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →750How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →5
Congo (Kinshasa)SourcedUSGS, Mineral Commodity Summaries 2026 (February 2026): Diamond (natural industrial) · 2025Open the source →7How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →150How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →7
BotswanaSourcedUSGS, Mineral Commodity Summaries 2026 (February 2026): Diamond (natural industrial) · 2025Open the source →5How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →250How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →—
ZimbabweSourcedUSGS, Mineral Commodity Summaries 2026 (February 2026): Diamond (natural industrial) · 2025Open the source →5How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →56How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →2
South AfricaSourcedUSGS, Mineral Commodity Summaries 2026 (February 2026): Diamond (natural industrial) · 2025Open the source →3How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →87How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →1
AngolaSourcedUSGS, Mineral Commodity Summaries 2026 (February 2026): Diamond (natural industrial) · 2025Open the source →1How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →150How this is computedA place's annual production ÷ the published world total, same unit and year.Method →Code → How this is computedPosition of a country when the countries USGS lists individually are sorted by the same column, largest first; equal values share a rank.Method →Code →3
United Statesnonenone—not available——

World total 2025: 38 million carats; reserves: 1,700 million carats. Countries USGS or EIA fold into “other countries” are not listed or ranked. USGS reserves: the part of an identified resource that could be economically extracted or produced at the time of determination (MCS Appendix C). Roughly proved + probable; not the broader resource. USGS, Mineral Commodity Summaries 2026 (February 2026): Diamond (natural industrial), table “World Natural Industrial Diamond Mine Production and Reserves”, read 2026-09-25.

Export restrictions on diamond (industrial)

OECD Inventory of Export Restrictions on Critical Raw Materials (2024 data). About 80 exporting countries. A country or resource with no row is not recorded in the inventory, which is not the same as unrestricted. OECD Data Explorer ↗