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By: Qaiyam Datoo About Me • My name is Qaiyam Anil Datoo. • I live in Calgary, Alberta, Canada. • My birthday is April, 12, so my birthstone is diamonds. • I also have a website located at: http://datoobros.wordpress.com. Diamond Colours • Diamonds can be white, yellow , blue, black green and orange. Diamond Hardness Diamonds are the hardest rock and mineral. Diamond Lustre • Diamonds are shiny and transperent Diamond Texture • Texture – When diamonds are cut they are very smooth. Before they are cut they are just like a plain old rock. Diamonds – How they are made • Most diamonds are made by hot temperature. • Pressure at depths of 140 to 190 kilometers (87 to 118 mi) in the Earth's mantle. 1 billion to 3.3 billion years Diamonds – How they are made • Youtube video (how diamonds are made) Diamonds – History • It is thought that diamonds were first discovered in Indiaabout 6’000 years ago. • The worlds love for diamonds started in India, where they were gathered from the country’s rivers and lakes. Diamonds - Mining • Here are some continents diamonds are mined in: Asia, Africa and North America. • Here are the country’s in Asia: Russia, India and Indonesia. • Here are the country’s in Africa: Angola, Botswana and South Africa. • Here are the country’s in North America: Canada and USA. Diamonds –Mining Asia • Here is a picture of a diamond in Asia in Russia: Diamonds Mine Africa • Here is a picture of a diamond mine in Africa in Angola: Diamond Mine – North America • Here is a picture of a diamond mine in North America in Canada: Worlds largest diamond mine The worlds largest diamond mine is called Jubilee in Africa. Largest Diamond • .“Sergio”, a black carbonado diamond from Brazil discovered in 1893, beats all its rivals for weight. 3167 carats Most Valuable Diamond • The previous record holder for the most expensive diamond was the 24.78-carat Graff Pink, sold by Sotheby's for $46.2 million in 2010. In 2013, Sotheby's auctioned a pink diamond called the 'Pink Star' for $83.2 million. Diamonds – Uses and value • Jewelry, such as: necklaces and rings. • Cutting, saws, chainsaw and grinding.