The Koh-i-Noor is one of the most famous diamonds in the world, known for its remarkable history, royal connections, and brilliant appearance. The diamond currently weighs approximately 105.6 carats (21.12 grams).
Its history spans several centuries, passing through the hands of powerful rulers before becoming part of the British Crown Jewels. Today, it is recognized not only for its beauty but also for its historical and cultural significance.
Koh-i-Noor Diamond Weight Conversion Chart
The Koh-i-Noor diamond weighs approximately 105.6 carats. Here are its weight conversions in different measurement units.
| Measurement Unit | Weight |
|---|---|
| Carats | 105.6 ct |
| Grams | 21.12 g |
| Milligrams | 21,120 mg |
| Kilograms | 0.02112 kg |
| Ounces | 0.745 oz |
| Pounds | 0.0466 lb |
Koh-i-Noor Diamond Dimensions Chart
The diamond has an oval brilliant shape. Its commonly reported dimensions are approximately 36 × 31.9 × 13.04 mm.
| Dimension | Millimeters (mm) | Centimeters (cm) | Inches (in) |
|---|---|---|---|
| Length | 36 mm | 3.6 cm | 1.42 in |
| Width | 31.9 mm | 3.19 cm | 1.26 in |
| Depth | 13.04 mm | 1.304 cm | 0.51 in |
Note: All conversions are approximate. Diamond measurements may vary slightly between historical references.
Koh-i-Noor Diamond Weight in Different Units
The Koh-i-Noor’s weight is measured in carats, the standard unit used for gemstones. One carat equals 0.2 grams, making the diamond’s current weight approximately 21.12 grams.
What Are the Dimensions of the Koh-i-Noor Diamond?
The Koh-i-Noor has an oval brilliant cut, giving it an elongated appearance. Its commonly reported measurements are approximately 36 mm in length, 31.9 mm in width, and 13.04 mm in depth.
These measurements help explain its physical size beyond its carat weight. Carat measures weight, not the visible dimensions of a diamond.
How Big Is the Koh-i-Noor Diamond in Inches?
The diamond measures approximately 1.42 inches long, 1.26 inches wide, and 0.51 inches deep.
These conversions make it easier for readers who are more familiar with inches than millimeters. Its oval shape also makes its length greater than its width.
Why Is the Koh-i-Noor Diamond So Famous?
The Koh-i-Noor is famous because of its extraordinary history and association with several royal families and empires. It passed through the hands of Mughal emperors, Persian rulers, Afghan leaders, and Sikh Maharajas.
Its name means “Mountain of Light” in Persian. The diamond became particularly well known in the 18th century and remains one of the most discussed historical gemstones in the world.
Where Did the Koh-i-Noor Diamond Come From?
The Koh-i-Noor is generally believed to have originated in the Golconda diamond-producing region of India. However, its exact discovery date and earliest history remain uncertain.
The Golconda region was historically famous for producing some of the world’s most valuable diamonds. The Koh-i-Noor is among the best-known gemstones associated with this historic source.
How Did the Koh-i-Noor Diamond Reach Britain?
The diamond changed ownership several times throughout history. It became part of the Sikh royal treasury before the British East India Company acquired it in 1849 under the Treaty of Lahore.
The treaty required the transfer of the diamond from the young Maharaja Duleep Singh to Queen Victoria. It was subsequently presented to Queen Victoria in Britain.
Its transfer remains a subject of historical and political debate, particularly regarding colonial history and ownership.
How Much Did the Koh-i-Noor Diamond Weigh Before Cutting?
Historical records commonly describe the Koh-i-Noor as weighing approximately 186 old carats before it was recut in 1852.
The cutting process changed its original shape and reduced its weight to approximately 105.6 modern carats. The work was carried out to improve the diamond’s brilliance and appearance.
This means the diamond lost a substantial amount of its original weight during the cutting process.
Where Is the Koh-i-Noor Diamond Today?
The Koh-i-Noor is part of the British Crown Jewels and is set in the Crown of Queen Elizabeth the Queen Mother, made in 1937.
It is held at the Tower of London, where visitors can see the Crown Jewels. The diamond remains one of the most recognizable gemstones in the royal collection.
What Does Koh-i-Noor Mean?
Koh-i-Noor is a Persian name that translates to “Mountain of Light.” The name is traditionally associated with Persian ruler Nader Shah, who acquired the diamond after the invasion of Delhi in 1739.
The name reflects the diamond’s reputation for brilliance and exceptional historical value.
Frequently Asked Questions
1. How much does the Koh-i-Noor diamond weigh?
The Koh-i-Noor diamond weighs approximately 105.6 carats, equivalent to 21.12 grams.
2. How big is the Koh-i-Noor diamond in inches?
Its commonly reported dimensions are approximately 1.42 inches long, 1.26 inches wide, and 0.51 inches deep.
3. How many grams is the Koh-i-Noor diamond?
The diamond weighs approximately 21.12 grams because one carat equals 0.2 grams.
4. What is the original weight of the Koh-i-Noor diamond?
Historical records commonly give its pre-cutting weight as approximately 186 old carats. It was recut in 1852 and now weighs 105.6 carats.
5. What does Koh-i-Noor mean?
Koh-i-Noor means “Mountain of Light” in Persian.
6. Where was the Koh-i-Noor diamond found?
It is believed to have originated in the Golconda diamond-producing region of India, although its exact discovery location and date are uncertain.
7. Where is the Koh-i-Noor diamond now?
The Koh-i-Noor is part of the British Crown Jewels and is set in the Crown of Queen Elizabeth the Queen Mother at the Tower of London.
8. Who owns the Koh-i-Noor diamond?
The diamond is held as part of the British Crown Jewels. Its historical transfer in 1849 remains disputed, with continuing discussions about its ownership and return.
9. When was the Koh-i-Noor diamond cut?
The diamond was recut in 1852 to improve its brilliance. The process reduced its weight from approximately 186 old carats to 105.6 carats.
Conclusion
The Koh-i-Noor is a famous diamond weighing approximately 105.6 carats (21.12 grams). Its commonly reported dimensions are around 36 × 31.9 × 13.04 mm, making it an important gemstone in royal history.
From its believed origins in India’s Golconda region to its place in the British Crown Jewels, the diamond has passed through several historical periods. Its size, weight, and fascinating past continue to attract worldwide attention.
Related Guides
- How Long Is the Great Wall of China? Length in Miles & KM (With Picture)
- How Much Is 1 Gram of Gold Worth Today in the USA?
- How Many Centimeters Are in an Inch? Easy Conversion Guide
Hi, I’m Michael Carter, I write simple, everyday size guides so you can picture any measurement in seconds.