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HomeWorldBangladesh to open vault believed to hold Dariya-i-Noor: Is Kohinoor's sister diamond actually in Dhaka?
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Bangladesh to open vault believed to hold Dariya-i-Noor: Is Kohinoor's sister diamond actually in Dhaka?

With no confirmed sighting for decades, the move by Muhammad Yunus’s interim government has reignited hopes of finally unearthing the truth.

September 04, 2025 / 10:13 IST
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Historic illustration of the Dariya-i-Noor Diamond, depicted alongside other Persian Crown jewels, as featured in an 1851 publication about the Great Exhibition (Image Source: Wikimedia Commons)

Bangladesh is preparing to open a long-sealed vault at state-run Sonali Bank that may hold one of the world’s most mysterious gems -- the Dariya-i-Noor diamond. Often described as the sister of the Kohinoor, the 26-carat stone has a storied journey from India’s Golconda mines to Mughal, Maratha and Sikh rulers before vanishing from public view. With no confirmed sighting for decades, the move by Muhammad Yunus’s interim government has reignited hopes of finally unearthing the truth.

What is the Dariya-i-Noor

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The Dariya-i-Noor is a 26-carat diamond with an oblong, table-shaped surface, according to Bangladesh’s The Business Standard. Like the Kohinoor, it is believed to have been mined from the Golconda mines in south India.

The gem is set in the centre of a gold armlet surrounded by ten smaller diamonds, each weighing about five carats, the newspaper reported.