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Karrisa Gems Limited officially registered in Arusha, Tanzania.
Obtained PML 003857NZ and launched Block B operations in Mererani.
Established first polishing workshop in Arusha with state-of-the-art machines.
Secured major clients in USA, strengthening international trade footprint.
Opened a new workshop in Dar es Salaam, expanding production capacity.
Focused on innovation, sustainability, and digital transformation in gemstone trade.
(From skilled gem cutting in the workshop to mining underground — highlighting our full value chain.)
(From rough to brilliance — Tanzanite gemstones transformed from raw crystals into polished treasures of unmatched beauty.)
We responsibly mine gemstones vital to society, creating meaningful value for our stakeholders.
To become a world-class supplier of gemstones, ensuring that every stone reflects authenticity, value, and Tanzanian pride.
Karrisa Gems was founded in 2016 in Arusha, Tanzania, with a clear vision—to transform raw minerals into polished gems of beauty and value.
From small-scale mining at Mererani to international gemstone exhibitions, we have grown into a reputable brand that bridges Tanzania’s natural wealth with global jewelry houses.
Our operations cover the entire value chain: mining, lapidary, exports, training, and capacity building. For over eight (8) years, we have added value to Tanzanite and Grossular minerals while nurturing local talent and hosting international buyers in Tanzania.