Understanding Diamonds: Origins, History, and Characteristics

How long ago were the oldest diamonds believed to have formed?

• 4.5 billion years ago

• 3.5 billion years ago

• 2.5 billion years ago

• 1.5 billion years ago

What is the origin of the word 'diamond'?

• Sanskrit word 'dyumant'

• French word 'diamant'

• Greek word 'adamus'

• Latin word 'diamon'

In which country were diamonds first discovered in rivers?

• Australia

• India

• South Africa

• Brazil

Which famous diamond is known as a cursed blue diamond?

• Koh-i-Noor

• Hope Diamond

• Golden Empress

• Cullinan

Which diamond was given as a wedding gift to Queen Elizabeth?

• Hope Diamond

• Williamson Diamond

• Golden Empress

• Cullinan Diamond

What is the significance of the Koh-i-Noor diamond according to legend?

• It grants eternal life

• It brings unhappiness if owned by a man

• It ensures victory in battles

• It brings wealth to its owner

What is the chemical composition of a diamond?

• Carbon and Hydrogen

• Pure Carbon

• Carbon and Nitrogen

• Carbon and Oxygen

What is the primary factor that makes diamonds so hard?

• Their weight

• Their color

• Their crystal structure

• Their large size

What happens to carbon atoms under ultra-high temperature and pressure?

• They form graphite

• They form coal

• They form diamond crystals

• They form quartz

What is the largest rough diamond ever excavated?

• Hope Diamond

• Cullinan Diamond

• Koh-i-Noor

• Golden Empress