Plizio Visual Lab

Kao Diamond Mine

Plizio editorial teamUpdated: Jun 2026Data Sources

mine

Weather…

Kao Diamond Mine, located in the Butha-Buthe District, is one of Lesotho's most prolific diamond mines. Reopened in 2009 under Namakwa Diamonds, it uses open-pit mining to extract high-quality gems. The mine's kimberlite pipe yields an annual production exceeding 100,000 carats. In 2018, a 108-carat diamond was recovered and sold for $2.2 million. Kao's economic impact is substantial, providing hundreds of jobs and supporting local infrastructure. The mine faces challenges such as power shortages but remains a key contributor to Lesotho's GDP. Its geological significance lies in the diamond-rich kimberlite formations. The mine exemplifies the potential of Lesotho's mining sector to drive economic growth and reduce poverty.

Location: Lesotho
Nearby: Afriski Mountain Resort (9 km)

Best time to visit & climate

The most pleasant time to visit is Sep–Nov.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	14	14	12	9	5	2	2	5	8	11	12	14
Rain mm	193	155	115	65	16	14	12	23	32	82	115	163

📋 Practical info

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What is this place?

Renowned for its massive kimberlite pipe, this is one of Lesotho's largest and most significant diamond mines, playing a pivotal role in the national economy. It is a major source of high-quality gemstones and a key industrial hub in the highlands.

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Visiting

Security around commercial diamond extraction is exceptionally tight, meaning unannounced tourism or public tours of the open pit are completely forbidden. The perimeter is heavily guarded and fenced, preventing any unauthorized entry by casual visitors.

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Where to view it

Although direct access is restricted, the colossal scale of the mining operation and its earth-moving equipment can sometimes be glimpsed from distant high-altitude public roads. Observing the massive crater from afar highlights the sheer magnitude of the excavation.

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Local products

Raw diamonds are securely exported and not available for local purchase around the site. However, the presence of the workforce supports small local enterprises in nearby villages where simple crafts, traditional woolen blankets, and basic food items are sold.

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Active season

Mining activity continues continuously throughout the year, day and night, regardless of tourist seasons. Traveling to the area is significantly easier during the drier months, as winter snows or summer mud can severely affect the mountainous dirt roads.

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Nearby

This dramatic industrial site is situated near other high-altitude attractions like the Afriski Mountain Resort and the spectacular Moteng Pass. It makes for an interesting, albeit distant, stop on a robust 4x4 expedition through northern Lesotho.