Which Diamond is known as the Mountain of Light?

Have you ever wondered that one of the most famous diamonds in the world has a poetic name meaning “Mountain of Light”? For centuries, rulers and emperors believed this gem brought power, glory, and sometimes even misfortune.

This legendary stone has travelled across many kingdoms. It passed through the hands of kings, warriors, and conquerors, each leaving behind stories of battles and treasures.

Many historians connect it with royal crowns and thrones. Wherever it went, it became a symbol of authority and pride.

Some people also believe it carries a mysterious past. Stories say it brought good luck to some rulers but trouble to others.

Today, the diamond is still talked about in history books, museums, and debates. Its journey across countries makes it more than a jewel — it is a piece of world history.

What are Diamonds?

Diamonds are natural gemstones made completely of carbon atoms. They form deep inside the Earth, around 150–200 km below the surface, under very high pressure and temperature. Most diamonds were created 1 to 3 billion years ago.

Main Characteristics of Diamonds

• Made of a single element — carbon
• Extremely hard and durable
• Transparent and highly reflective
• Crystallized in a cubic structure
• Usually about 99.95% pure carbon

Even small impurities can change the diamond’s colour, giving shades like yellow, blue, pink, or brown.

Which Diamond is known as the Mountain of Light?

The Kohinoor diamond is known as the Mountain of Light.

The name comes from the Persian language:

• Koh = Mountain
• Noor = Light

So, Koh-i-Noor literally means “Mountain of Light.”

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Why is the Kohinoor known as the Mountain of Light?

In 1739, Persian ruler Nadir Shah invaded Delhi and captured the Mughal treasury. When he first saw the diamond, he was amazed by its brilliance and reportedly exclaimed: Koh-i-Noor! (Mountain of Light)!

From that moment, the diamond became famous by this name.

Origin of the Kohinoor Diamond

Historians believe the diamond was mined in ancient India, most likely in present-day Andhra Pradesh from the famous Golconda mines.

In old Sanskrit writings, it was called “Syamantaka Mani” (or Samantika Mani) and was believed to possess divine power and bring great fortune.

Size and Weight of the Kohinoor

Originally, the diamond was extremely large.

Time Period	Weight
Original rough diamond	About 793 carats
Reached Britain	Around 190.3 carats
After recutting	105.6 carats

The reduction happened because polishing improves brilliance but reduces weight.

Colour and Quality of Kohinoor

The Kohinoor is a Type IIa diamond, which means it is among the purest diamonds on Earth.

Features:

• Colourless (D-grade)
• Exceptional clarity
• Oval cut
• 68 facets
• Very high transparency

Type IIa diamonds contain almost no nitrogen impurities, making them extremely rare.

Interesting Facts About Kohinoor

• Discovered in India in the 13th century
• One of the most disputed diamonds in the world
• Part of British Crown Jewels
• Over 700 years of recorded history
• Known worldwide as a symbol of royalty