Gemstones Production by Country

Gemstones production by country shows how much gem-quality diamond stones are produced in each country, measured in million carats. The figures cover natural gem-quality diamond production, combining an Our World in Data series for 2020-2023 with 2024 and 2025 estimates taken directly from the USGS Mineral Commodity Summaries 2026. Both refer to the same measure; historical values may differ between the two because the USGS revises earlier production estimates in subsequent releases. The table covers 16 countries with production data in the period. USGS reports 2025 estimates for 12 countries, which together with the "Other countries" value give a World total of 69 million carats in 2025. The United States is listed in the source with no reported value.

Largest Gem-Quality Diamond-Producing Countries in 2025

Russia produced the most gemstones in 2025 with 21 million carats. Canada, Angola, and Botswana each ranked second with 13 million carats, followed by Namibia (2.3), South Africa (2.1), DR Congo (2.0), Lesotho (0.7), Zimbabwe (0.53), Sierra Leone (0.46), Ghana (0.33), and Tanzania (0.32).

Gemstones Production by Country

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#	Country	Latest Data (million carats)	Year
1	Russia RU	21	2025
2	Botswana BW	13	2025
3	Canada CA	13	2025
4	Angola AO	13	2025
5	Namibia NA	2.3	2025
6	South Africa ZA	2.1	2025
7	DR Congo CD	2	2025
8	Lesotho LS	0.7	2025
9	Zimbabwe ZW	0.53	2025
10	Sierra Leone SL	0.46	2025
11	Congo CG	0.34	2024
12	Ghana GH	0.33	2025
13	Tanzania TZ	0.32	2025
14	Australia AU	0.04	2020
15	Brazil BR	0.03	2022
16	Guinea GN	0.02	2024
17	Central African Republic CF	0.01	2021

Russia alone accounted for about 30 percent of the World total in 2025, and Russia and Canada together for about 49 percent; the top three countries accounted for about 68 percent. Russia's output was about 1.6 times that of Canada. Four countries produced at least 10 million carats in 2025.

Gemstones Production Around the World

In Europe, Russia (21) is the only listed producer. In Africa, Angola (13) and Botswana (13) lead, ahead of Namibia (2.3), South Africa (2.1), DR Congo (2.0), Lesotho (0.7), Zimbabwe (0.53), Sierra Leone (0.46), Ghana (0.33), and Tanzania (0.32).

In North America, Canada (13) is the only listed producer; the United States is listed in the source with no reported value. No country from South America or Oceania has an individual 2025 value in the USGS data; Brazil (0.032, 2022) and Australia (0.044, 2020) therefore retain older values from the earlier series, while Guinea (0.019, 2023) and the Central African Republic (0.015, 2021) also retain their latest available historical values.

Largest Changes in Gemstones Production, 2024-2025

No listed country changed its value between 2024 and 2025: Russia (21), Canada (13), Angola (13), Botswana (13), Namibia (2.3), South Africa (2.1), DR Congo (2.0), Lesotho (0.7), Zimbabwe (0.53), Sierra Leone (0.46), Ghana (0.33), and Tanzania (0.32) all held their levels. The World total remained at 69 million carats.

Gemstones Production by Country

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#	Country	2020	2021	2022	2023	2024	2025
1	Russia	3.5	4.38	4.7	4.18	21	21
2	Canada	2.62	3.52	3.24	3.2	13	13
3	Botswana	2.38	3.2	3.42	3.52	13	13
4	Angola	1.39	1.57	1.58	1.76	13	13
5	South Africa	1.36	0.78	0.77	0.47	2.1	2.1
6	Congo	0.51	0.56	0.4	0.33	0.34	-
7	DR Congo	0.51	0.56	0.4	0.33	2	2
8	Namibia	0.31	0.35	0.41	0.48	2.3	2.3
9	Sierra Leone	0.1	0.13	0.11	0.08	0.46	0.46
10	Lesotho	0.1	0.07	0.15	0.09	0.7	0.7
11	Zimbabwe	0.05	0.08	0.09	0.1	0.53	0.53
12	Australia	0.04	-	-	-	-	-
13	Brazil	0.03	0.03	0.03	-	-	-
14	Tanzania	0.02	-	0.06	0.03	0.32	0.32
15	Guinea	0.02	0.04	0.02	0.02	0.02	-
16	Central African Republic	-	0.01	-	-	-	-
17	Ghana	-	0.01	-	0.04	0.33	0.33

Methodology

The 2020-2023 figures come from Our World in Data, which compiles national gemstone production figures from the USGS Mineral Commodity Summaries and the BGS World Mineral Statistics, with major processing by Our World in Data; those values cover natural gem-quality diamonds. The 2024 and 2025 figures are estimates from the USGS Mineral Commodity Summaries 2026, which report natural gem-quality diamond mine production in thousand-carats units, converted to million carats here (values may be rounded). The 2020-2023 series and the 2024-2025 USGS estimates both refer to natural gem-quality diamond production, although historical values may differ because the USGS revises earlier estimates in subsequent releases. Values refer to gem-quality diamond production, in million carats; industrial-grade diamonds are reported separately by the source and are not included here. The source lists the United States with no reported value and groups other producers under "Other countries". In the table, a zero reflects no production, while an empty cell means that no value was reported.