Today, it involves rare, Blue diamond in my blog post. And this isn’t coincidence. As in the last week to hear and read was, will auction the prestigious auction house Christie’s a known as the Bulgari Blue diamond ring (20.82 carats) on October 20, 2010 in New York.
Apart from the fact that the ring consists of two interconnected triangular diamonds, the truly special feature of this ring is the color of one of the two diamonds. You will know it, it is the color blue. And here I speak not of some blue, but a “fancy vivid”, the best color grade, a colored diamond can have. Only diamonds with the strongest and purest saturation experienced a such classification. Consequently is this honor part seen only one out of ten million diamonds statistically. More shades of color that “fancy vivid” come close, are “fancy deep” and “fancy intense” (see graduation table). These are taken up later again when looking at another world famous Blue diamonds.
The Blue Diamond of the Bulgari blue is now at 10.95 carats the largest triangular “fancy vivid”, which was ever offered at auction. The diamond ring by Bulgari in the year 1970 created comes from privately owned by a European collector, who in 1972 gave him his wife for the birth of their common first-born son. At that time, the ring cost around a million US dollars, at these times have much money, but probably nothing compared to the over 15 million US dollars, which is now expected as the auction proceeds. Before I forget it: the second part of the diamond is a 9.87-Carat great, flawless white diamond, not less nice, but just not in this breathtaking blue.
“Among the natural color diamonds the blue is one of the most wanted colours, especially due to the rarity in nature. In addition here are the high quality, the extraordinary form and size of the Bulgari blue. Not for nothing the ring ensures plenty of excitement in the jewelry scene and especially with well-known jewelry collectors from all over the world”, sums up Rahul Ladakia, diamond expert at Christie’s. Accordingly, all waiting now banned on the auction, which already counts’s Christie in the run-up to the top auctions this year.
Development of colored diamonds
Of course some will be wondering now rightly: “How so a blue diamond is, if it is created for (any) time?” As well as all other colored diamonds (known as “fancy diamonds”), blue diamonds caused by impurities of the diamond during its growth phase. On average, only one is classified as “fancy diamond” from 100,000 diamonds. Diamonds are made of a crystal lattice with closely packed atoms of carbon. The crystal lattice is never perfect and allows such contamination in two ways. Either join a foreign atoms (for example, nitrogen or hydrogen) between the carbon atoms or’s ensure defective carbon atoms, for example completely lacks the atom or is shifted (slightly) for contaminants. In the case of blue diamonds, “contaminated” the element boron the diamonds and provides the blue color.
In this context it is interesting, that the even rarer occurring in the natural green diamonds are not by foreign atoms, but through contact with radioactive radiation probably. This also happens but not in the growth phase, but only after completion of the diamond. This also explains why are in the natural green diamonds with an intense, penetrating the whole diamond saturation, to meet much less often.
The rare of blue diamonds is undisputed, but it is striking, that many blue diamonds, the most famous and also most expensive diamond in the world is classified.
Famous Blue diamonds
In the following I turn on single famous diamonds and their history.
To the most famous Blue diamond and at the same time the most famous diamonds in the world at all, the “blue”hope no doubt belongs with its breathtaking colour grading “fancy deep blue”. Come to the elliptical “blue hope” from a mine in India and weighs approximately 45 carats in its present form. Originally, the diamond should have weighed 112 carats and has a not exactly appealing, triangular form. Long, it was speculated where remains of the rest of the original hope off diamonds or in whatever other blue diamonds being “gone”. A research team of the national gem collection at the Smithsonian Institute has adopted and found that despite striking similarity with other known blue diamonds, these not can be emerged due to their different structure from the “blue”hope this question. The method of investigation and the findings can be good in this Spiegel Online to read article. History after the “blue hope” with a curse should be occupied, all its owners could not long enjoy him. So, for example, Louis XIV could carry only once the “blue hope” before he died in a smallpox infection. The following owners, including Louis XVI, possession of the diamonds had to pay with their lives. Today, the diamond, with many other valuable diamonds, is in the Smithsonian’s National Museum of natural history to admire in New York.
Long was also suspected that the following blue diamond also originated from the “blue hope”. The “Wittelsbach Diamond” or “Blue Wittelsbach” is 35.56 carats the largest Blue Diamond of the world and not only because of its unique, pure dark blue livery famous. Rather, the “blue Wittelsbach” enjoys the title of “Most expensive diamond in the world” since December 2008. The diamond at an auction in London by the London jeweler Laurence Graff has been purchased for the record price of 18.75 million euros. Like the “blue hope”, of “blue Wittelsbach” should come from a mine in India. The King of Spain, Philip IV and Emperor Leopold I of Austria were among its owners, before the diamond through the marriage of Archduchess Maria Malia from Austria with the Bavarian Crown Prince Karl Albrecht in the possession of the House of Wittelsbach was transferred.
Also the “heart of eternity” coloring “fancy vivid blue” belongs to the world famous Blue diamonds. The diamond heart-shaped puts it in a weighing 27.64 carats and comes as a variety of blue diamonds from a mine in South Africa. From the hands of DeBeers diamond passed into the possession of a private collector.
Also the “Blue heart Diamond” (“the Eugenie blue”), with its 30,82 carats and the “fancy intense blue” color level belongs to the Group of blue celebrities. In the course of time, the diamond made with some “transformations”. So, the ‘blue heart’ was surrounded by 25 small, white diamonds in a platinum ring. Later part of a corset and as a pendant on a necklace before he got caught in a ring in the end again. Today the “blue heart” also belongs to the diamond collection of the Smithsonian Museum.
At last, which Tereschenko diamond, now known as “Mouawad blue”, with its Teardrop color grade “fancy blue”. 42,92 carats, it is among the largest Blue diamond in the world and formerly belonged to the rich, Russian sugar manufacturers Tereschenko. In the wake of the Russian Revolution, the diamond out of the country was smuggled, and remained lost until 1984, before Christie’s offered to him at an auction.
The number of blue diamonds occurring in the natural may be small in comparison to other colorless or yellowish diamonds. But just this rarity, the history associated with the individual diamonds, the resulting attention and of course the now immense value to collectors, blue diamonds make a coveted commodity. And also not to forget the fact that you as easy and almost no risk can invest several million euros in (almost) any other form of investment is of course