June 18, 2011
Diamonds From The Earth
Diamonds form between 75-120 miles below the earth’s surface. According to geologists the first delivery of diamonds was somewhere around 2.5 billion years ago and the most recent was 45 million years ago. The carbon required to make diamonds comes from melting of pre-existing rocks in the Earth’s upper mantle. There are more than enough carbon atoms in the mantle. Temperature changes in the upper mantle force the carbon atoms to go deeper in the earth where it continues to melt and finally becomes new rock. New rock occurs when the temperature reduces. If other conditions like pressure and chemistry is right then the carbon atoms and the melting crystal rock bond to build diamond crystals.
There is no guarantee these carbon atoms will turn into diamonds. If the temperature rises or the pressure drops the diamond crystals may melt partially or totally dissolve. Even if they do form, it takes thousand of years for those diamonds to come anywhere near the surface.
As you can see, it takes millions of years to make a diamond. When you own a diamond, you own something of a legend in the making. A diamond cannot be made in a factory every other day. A diamond comes form the center of the earth. What is very interestingly is that not all diamonds mined are made into jewelry. Only about one fourth of the diamonds mined are made into jewelry. Every 100 tons of mud will produces just one carat of diamond. And this one carat maybe several stones! It could be anything from 0.005 ct to 1 ct. because much of the original stone is cut away in the process of cutting, shaping and polishing the diamond.
Diamonds come in different rough shapes. The next time you look at your diamond think about the amount of time, energy and resources have gone into making just that one diamond. To find out more information about diamonds of all sizes check out this website. http://www.diamond-solitaire.me
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