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Fancy Black Diamonds

 

Although black diamonds are somewhat more plentiful than other fancy colour diamonds, the majority of black diamonds on the market have been treated to achieve their colour. A naturally occurring black is quite rare. Relatively low demand for this colour makes this diamond the most affordable of all fancy colours.

 

What makes a diamond black?

 

Black diamonds are primarily opaque stones. The colour is caused by criss-crossing assures containing black deposits. Translucent or semi-transparent black diamonds are rare. The world's most famous black diamond, the 67.5 carat cushion cut Black Orlov is actually not black at all, but a very dark gun metal colour. As might be expected in stones where light absorption is almost total, colour modifiers in a black diamond span the entire spectrum. As black diamonds exhibit no prismatic play whatsoever their lustre is incredible, featuring an almost metallic sheen.

 

Black diamonds are probably the most provoking of all natural coloured diamonds. Some people find them almost hypnotic, while others consider them the least attractive of all fancy colour diamonds. The largest markets for black diamonds are In Eastern countries, where a black diamond is considered the ultimate mourning gem. Because many of the black diamonds on the market are not naturally coloured, having undergone an irradiation or a heat treatment to produce their stunning black sheen, a buyer must always ask whether a stone is in fact a natural black. Black coloured diamonds only have one intensity level, which is fancy black.

 

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