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22kt gold fancy filigree design earrings with Dome style hanging Zumkhi, length is 28mm (1-1/8 inches) including the hanging part, hanging Zumkhi is 13 mm (0.5 inches) in diameter and top part is 11mm (3/8 inches) wide and have post with screw back.

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22kt gold fancy chandelier style earrings with white CZ stone stones, length of the earring is 20mm (0.812 inches) long, maximum width is 9mm (0.375 inches), top have post with screw back.

27%

Black Diamond Rings

Black Diamond History

“Carbonados” the Portuguese christened these black stones in the mid eighteenth century. The word itself means carbonized or burned. We know them as black diamonds and they are found quite exclusively in the Central African Republic and in Brazil. Black diamonds are an anomaly in the universe of diamonds in many ways. Black diamonds, like all diamonds of color, are called “Fancies”. That, and the fact that they are rated at 10 on the Moh’s Scale of hardness, is where the similarity ends. Even the origin of black diamonds is subject to different theories:

1. Unlike other diamonds, black diamonds have no mantle driven inclusions.
2. Their carbon isotope value is very low.
3. Black diamonds are porous.
4. Black diamonds are not found in any of the usual diamond fields. In fact, according to Stephen Haggerty of Florida International University and the Brookhaven National Laboratory, out of over the 600 tons of diamonds that have been mined since 1900, not one single black diamond has been recovered from the traditional mining fields.
5. Perhaps the most intriguing theory postulated about the origin of black diamonds is that they are the result of a supernova in outer space – the death of a star.
6. Black diamonds, unlike conventional diamonds, are actually millions of diamonds that have been stuck together, arriving on Earth by hitching a ride on a meteor.
7. Also in contrast to conventional diamonds, which were formed over 3 billion years ago perhaps, 400 miles below Earth’s surface, black diamonds are relative youngsters believed to be only 100 million to a billion years old

Black Diamond Rings

Black Diamond Ring Myths

The fact that black diamonds are located on the continents of South America and Africa has been explained by the theory that at one time, the two were one land mass. The supposition has also been proposed that the impact of a meteor could have contributed to this continental division.

The mists of time have also surrounded black diamonds with contradictory myths and beliefs. Indian legend has it that black diamonds represent Yama, the god of death. In almost direct opposition is the Italian belief that the black diamond is the stone of reconciliation – with the power to shore up relationships and correct misunderstandings between couples.

For years, carbonadoes have been used in industry. We are all aware of the familiar phrase, “industrial diamonds”. Because of their hardness, black diamonds have proven eminently suitable for use in cutting tools and drill bits. Whether black diamonds were formed by direct conversion of organic carbon under high pressure in the Earth’s interior, much like conventional diamonds as some contend, or by way of radiation produced by a spontaneous fusion of uranium and thorium, as others contend, or by way of a meteorite, black diamonds have always been in demand. It is only relatively recently that they have been deemed desirable as jewelry. This development is due largely to the marketing campaign by the De Beers organization.

Because of their many inclusions – criss-crossing scratches filled with sulfides – which, in point of fact lead to the black color, black diamonds have been very difficult to cut and subsequently polish. Once in a while, however, black diamonds with fewer inclusions are turned up. These, of course, are easier to deal with. Consequently, these more refined black diamonds command considerably higher prices on the market.

Black Diamond Jewelry

The De Beers group, out of South Africa, has the corner on 40% of the world’s diamonds by value. It was De Beers, founded by Cecil Rhodes in the late 19th century, who developed the “Four Cs” classification system for diamonds – clarity, color, cut and carats. Indeed, it was the aggressive marketing campaign conducted by De Beers that was primarily responsible for the popularity – even to the present day – of traditional diamond rings. They have also had a big hand in the promotion of black diamonds – both natural and treated. That the popularity was manufactured doesn’t lessen it. It’s here and it’s real and so should be addressed as legitimate.

The necessity of the development of treated black diamonds is a direct result of the demand created – yet again – by the De Beers marketing division and the strategy they employed. It should be noted that natural black diamonds are difficult to deal with – to cut and polish – because of the abundance of inclusions on the stones and the nature of their composition. One gemologist put it plainly that it seemed that in so far as black diamonds are concerned, the more you cut the more bits and pieces fall off. Black diamonds that are fashionable are quite rare. Consequently, demand has outstripped the supply. Treated diamonds have stepped in to affordably fill the void.