Tag: alluvial mining

How diamonds are mined
casino blog
25 August 2008

How diamonds are minedDiamonds are forever, a girls best friend, and downright expensive. In order to put that diamond ring on your finger, someone has to mine, ship, process, inspect, polish, set, and ultimately sell that diamond. With all of these various steps, it’s no wonder why diamonds are among the world’s most expensive items. Of every diamond mined throughout the world every year, far less than half will be gem quality. What happens to the rest of the diamonds?

They’re put into two other categories: Near-gem quality, and industrial quality. In order to be stamped as gem quality, diamonds must display the highest standard of excellence. Trained eyes painstakingly seek out any flaws. If a diamond isn’t up to par, it never will be. It’s hit or miss in the diamond industry. But before they can be professionally graded, the diamonds must be mined.

Diamonds are mined throughout the world, most notably in Africa where the diamond trade has been the root of many evils. In order to mine the gems, two methods are used: Pipe mining or alluvial mining. The first, pipe mining, refers to the extraction of diamonds from volcanic pipes. This is a lengthy process which covers tremendous ground. On average, 250 tons of ore must be mined before a one-carat gem quality diamond is produced.

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