Diamonds

38 Sri Lanka One of the world’s most beautiful and exotic islands, Sri Lanka, (formerly Ceylon) lies just below the […]

37 Hindu lore rubies Rubies are a type of corundum, a rare mineral made up of densely packed aluminum and

36 Ruby and Sapphire It’s hard to imagine that a mineral with a name as mundane as corundum yields gems

35 Corundum Corundum is the form of mineral from which sapphires and rubies are derived. The mineral is naturally clear,

33 Industrial vs gem quality diamonds Diamonds are the hardest known naturally occurring material Its hardness has been known since

32 Diamond durability Diamonds are among the hardest substances on earth; in fact they use diamonds and diamond dust to

31 Diamond mines The very mention of diamond evokes fantasies of fabulous riches and dreams of love and power. Up

30 How diamonds made Diamonds form between 75-120 miles below the earth’s surface. According to geologists the first delivery of

29 American Topaz The world’s largest cut topaz, called the American Topaz, resides at the Smithsonian Institution in Washington, DC.

28 Victoria Transvaal Diamond The Victoria-Transvaal is a 67.89-carat, brownish-yellow pear shaped stone. It was cut from a 240-carat crystal