diamond is derived from the Greek
Diamonds are the strongest natural raw substance. They can only be cut by another diamond, or a laser cutting tool. These gemstones come in many colours: black, red, pink, brown and orange. However, white diamonds are the most popular. Many people consider them the most beautiful. The most expensive diamond is the pink diamond as they are rare. Diamonds, some say, are a girl's best friend.
of carbon atoms
are covalently bonded together. Most natural
diamonds are formed under high pressure and
temperature in the craton (a part of the
of the Earth.
Diamonds are valued for their strength, hardness and beauty. The beauty of diamonds comes from its ability to reflect and refract light.
The refractive index of diamond is 2.4.