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How precious are Black Diamonds?

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asked Oct 3, 2016 by Joeyanne1965 (120 points)

2 Answers

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Real black diamonds are rare. The naturally occurring black diamond is black from inclusions and differing structure. Since the clarity is one way of valuing stones, black diamonds are not as valuable, even though they are more rare. Most of the diamonds you see that are black are heat-treated low quality stones. Better quality stones are not heat-treated so they could be sold for less money than their original state. The real value is the way the stones complement the jewelry in which they are used. Black stones set off lighter settings. It then becomes a matter of taste.. less valuable than other colors, more rare than most.
answered Oct 9, 2016 by Weasel (40,360 points)
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One of the most famous black diamonds is the Black Orlov (67.50 ct). Most, however end up as industrial grit because they tend to be heavily knotted.

Until the 1990s there was very little demand for black diamonds, but jewelers found that they contrast well with colorless melee (tiny diamonds) and have a formal look when they are set this way.  

Overall they should be less expensive than clear diamonds, because they can/do hide a lot of clarity characteristics. Clarity is a big determinant on the price of a diamond.
answered Oct 9 by JWinter (300 points)

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