The richest diamond mine in the world by value is the Jwaneng Diamond Mine in Botswana, located in the Kalahari Desert, often called the "Prince of Mines" for its immense output of high-value gems, operated by Debswana (a De Beers/Botswana government joint venture). It produces millions of carats annually, transforming Botswana's economy from poverty to middle-income status, and is one of the world's largest diamond producers by both volume and value.
The Jwaneng diamond mine is the richest diamond mine in the world, and also the second largest in the world. It is nicknamed "the Prince of Mines", and is located in south-central Botswana about 170 kilometers (110 mi) southwest of the city of Gaborone.
Russia. Home to arguably the richest and largest diamond resources in the world, Russia tops the list with more than 12 open-pit mines. With mining starting in 1947, Russia now tops the world's diamond production hierarchy. It is also the world's largest exporter of rough diamonds by volume.
Top 10 Biggest Diamond Mines
Which countries are the biggest diamond producers?
Botswana – 23 million carats of diamonds.
One of the main reasons for this concern is that diamond mines are not infinite resources – eventually, they will run out. As Gemological Institute of America research scientist Evan Smith says, “For every diamond you take out of the ground, there's one fewer to be found.”
Australia's largest and most economic diamond deposit has been the Argyle Mine, in the East Kimberley region of Western Australia. It started production in the early 1980s and was, for some years, the world's largest diamond mine by volume. It produces a large quantity of stones each year for the international market.
Anglo American owns 85% of De Beers Group, the world's leading diamond company. The remaining 15% is owned by the Government of the Republic of Botswana (GRB). De Beers Group and its partners produce around one third of the world's rough diamonds, by value.
Benefits to buying Russian diamonds
Jewelers often sought out stones from cutters whose craftsmanship aligned with high-end, luxury aesthetics. Over time, these cutting traditions developed reputations for producing diamonds that were durable, well finished, and capable of lasting for generations.
A diamond appropriate for 75% of a $20k engagement budget could range from 1 to 2.50 carats, or even higher, depending on the shape, and how it's graded in other areas. It may even be able to get you a diamond 3 carat or larger stone if you opt for a lab-grown diamond instead.
1. What Is The Most Expensive Diamond In The World? Ans: The Koh-I-Noor Is Considered The Most Valuable Diamond. Among Auctioned Diamonds, The Pink Star Holds The Record, Selling For $71.2 Million.
It is currently owned by Moussaieff Jewellers Ltd. The Moussaieff Red was displayed in 2003 as part of the Smithsonian Institution's "The Splendor of Diamonds" exhibit, alongside The De Beers Millennium Star and The Heart of Eternity.
Due to their scarcity, natural black diamonds are considered to be rarer than the traditional colorless diamond. In terms of pricing, natural fancy carbonados can cost anywhere from $3,000 to $5,000 a carat, obviously contingent upon size and among other factors.
As of 2024, De Beers owns and operates, solely or jointly, five diamond mines in Botswana. A long dispute has existed between the interests of De Beers and the San (Bushman) tribe.
“2025 has been a great year for large diamond finds!" said O'Neal. "So far, we have registered four diamonds weighing over two-carats.” As of this publication, 403 diamonds have been registered at Crater of Diamonds State Park this year.
The Aquamarine name comes from the Latin word for seawater and is said to calm waves and keep sailors safe at sea. It is sometimes referred to as a poor man's diamond because of the pale color.
TANZANITE: ONE THOUSAND TIMES RARER THAN A DIAMOND.