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Rare Blue Diamond Fetches Record Price

london price-per-carat sensational graff diamonds house natural boron mixing

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#1 Hum

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Posted 25 April 2013 - 22:14

A beautiful, rare blue diamond weighing 5.30 carats fetched more than five times its estimated price at auction on Wednesday, bringing in nearly $9.6 million and setting a new price-per-carat record.

"We are delighted with the price it has made," Jean Ghika, director of Bonhams Fine Jewelry, which held the sale in London, said in a statement. "It was a sensational stone which charmed everyone who viewed it prior to the sale."

The 5.30-carat diamond -- a little smaller than the diameter of a dime -- was made into a "Trombino" ring by famed Italian jewelry designer Bulgari in 1965. It's a cushion-shaped fancy deep-blue diamond, set horizontally and framed by brilliant-cut and baguette-cut white diamonds. (In gemstone terms, "fancy" means that the color is very intense.) The winning bid came from Graff Diamonds, an international jewelry house on Bond Street in London, Bonhams reported.

The gem gets its unique color from natural traces of the element boron mixing with the carbon atoms in the stone. Since boron conducts some electricity, blue diamonds look even more blue when they are warm. Less than one percent of all diamonds mined are blue.

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#2 Growled

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Posted 26 April 2013 - 01:59

That is a beautiful piece. If I had $9.6 million to spare I might buy it.

#3 Praetor

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Posted 26 April 2013 - 02:03

diamonds...over hyped stones that a cartel claims to be very rare so it will cost more for the average joe to get into his fiancé pants.

#4 OP Hum

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Posted 27 April 2013 - 00:54

I'll take two ...

#5 Growled

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Posted 27 April 2013 - 02:27

I'll take two ...


I'd have to take it because I couldn't afford it.



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