DIAMOND. The Hardest Working Gemstones in the World.

DIAMOND. The Hardest Working Gemstones in the World.

Diamonds were made millions of years ago when volcanoes melted the 'carbon' inside some rocks gigantic masses of earth pressed the carbon tightly. The melted hot carbon was squeezed thus tightly that by the time it cooled, it had changed into the exhausting gemstones known as 'diamonds'.

    Some diamonds are found within the gravel and near rivers in the sand. Others are left in mountains by glaciers.

    Most diamonds are well-mined from rocks deep underground, mostly in Africa. The country of South Africa is that the major supply of diamonds used in jewellery.

    Diamonds sometimes appear like item of glass or dull stones when they're first taken out of the bottom. They have to be cut and formed to be used in jewellery. And diamonds are thus hard that nothing will cut them except another diamond.

    Usually diamond-edge tools, the diamond cutter carefully shapes and polishes the diamond so that it has straight edges and smooth surfaces. These edges and surfaces facilitate the diamond reflect light in order that it sparkles and flashes with little bursts of colour.

    Diamonds often seem to flash like white fire. But there are diamonds that have other colours. Red, blue, and green diamonds are difficult to seek out. Yellow, orange, and violet diamonds are a lot of common. Sometimes people even find black diamonds.

DIAMOND. The Hardest Working Gemstones in the World.

    Only the clearest diamonds become glittering gems. However as a result of their hardness, even dull-looking diamonds are still valuable as cutting tools. These are called industrial diamonds'. Only about 25 percent of all diamonds are fine enough to become jewels, so most of the world's diamonds are the hard-working industrial ones.