- Diamonds have very high melting point of 3820K (3547' C/ 6420' F) and a boiling point of 5100K (4827' C/ 8720' F)
- The diamond is a birthstone for people born in the month of April
- Most diamonds found in nature are between one to three billion years old
- The Earth is estimated at 4.5 billion years old. The oldest diamonds are believed to have been crystallized around 3.3 Billion years ago
- Diamonds were first discovered in India and then in Brazil
- Diamonds were originally found and mined in India, Brazil, South Africa, Angola, Botswana, Namibia and Congo; however today, diamonds also come from Guinea, Lesotho, Siera Leone, China, Tanzania, Ivory Coast, Guyana, Central African Republic, Canada, and Australia
- The top three diamonds mines in the world are: Botswana (24 million carats), Russia (17.8 million carats) and Canada (10.9 million carats)
- 80% of diamonds go toward industrial uses
- To produce a single one-carat diamond, 250 tons of earth will be mined
- The earliest record of man giving diamond to a woman was in 1477 when the Archduke of Austria gave a diamond to Mary of Burgundy. On average, each stone will lose 50% of its original weight during cutting and polishing
- Diamonds form 90 – 120 miles beneath the surface of the earth and are carried to the surface by volcanic eruptions
- The U.S. is the world’s largest diamond market. Although the U.S. accounts for less than one-percent of total global gemstone production, America buys more than half of the world's total gem quality diamonds
- There are white dwarf stars in space that have a diamond core. The biggest diamond known in universe weights 2.27 thousand trillion tons which is 10 billion trillion carats, or a 1 followed by 34 zeros
- The largest diamond ever found was the Cullinan at 3106 carats
- 80% of the world's diamonds are not suitable for jewelry
- Diamonds worn in ancient times were believed to promote strength, invincibility and courage
- Color of diamond is usually pale yellow to colorless, but can also be brown, blue, green, orange, red, pink and black
- The ancient Greeks believed that diamonds were splinters of stars fallen on the earth
- Romans believed that diamonds had the power to ward off evil and wore them as talismans. They inherited this belief from Indian mythology
- A law in Thirteenth-century France decreed that only the King could wear diamonds
