The most expensive diamond in the world, the Koh-i-Noor, is currently owned by the British Royal Crown. It's on display as the main diamond in the British Royal Crown Jewels.
The Koh-i-Noor has a fascinating history and is shrouded in mystery and legend. It was originally mined in India, but has been passed down through various rulers and empires throughout history.
While the exact value of the Koh-i-Noor is unknown, it's estimated to be worth billions of dollars. It's a 105.6-carat diamond with a rich and controversial history.
While India is the country where the Koh-i-Noor was discovered, its current ownership lies with the British Royal Crown, making the UK the country with the most expensive diamond.
