1 Harvard University, USA
2 California Institute of Technology, USA
3 Massachusetts Institute of Technology, USA
4 Stanford University, USA
5 Princeton University, USA
6 University of Cambridge, UK
6 University of Oxford, UK
8 University of California, Berkeley, USA
9 Imperial College London, UK
10 Yale University, USA
Sunday, 17 July 2011
Beau Sancy Diamond
A drawing I made of the Beau Sancy, based closely on illustrations
I've seen of it. I have also seen a couple photos. Unfortunately,
none of them are clear enough to be worth showing here.
At the time of the marriage of Prince Albert of Prussia with Princess Mary of Sachsen-Altenburg in Berlin, the bridge was described in the newspaper accounts of the wedding as wearing "the crown necklace, with the celebrated 'Sancy' diamond." Much surprise and mystification were caused by this statement, apparently made on authority; for amongst the many strange peregrinations of the "celebrated 'Sancy' diamond," a visit to the Prussian "Schatz-Kammer" had not hitherto been mentioned. We are now in a position to clear up the mystery, thanks to the subjoined extract from an official communication obligingly made to us on June 7th, 1881, by Herr Smernitz, minister of the Royal Household, Berlin: --
"Amongst the numerous diamonds of the Royal Treasury there is one only possessing historical interest. This is a brilliant of splendid shape weighing 34 carats, worn as a pendant to a necklace, and known as the 'Little Sancy.' This diamond was bought by Prince Frederick Henry of Orange, who died in the year 1647, and who was grandfather of King Frederick I of Prussia. Through King Frederick it passed from the Orange bequests to the Prussian Royal Treasury."
It thus appears that at her wedding Princess Mary of Sachen-Altenburg wore not the celebrated "Sancy" diamond, but this "Little Sancy", correctly enough described as attached to the "crown necklace." Of the very existance of this "Little Sancy", the public has been hitherto profoundly ignorant. Nor does it even now appear by what right it bears the name "Sancy" at all. The explanation, however, is not far to seek. We already have seen that Nicholas Harlai, Signeur de Sancy, was evidently a diamond collector, and that he died in the year 1627. After his death his collection was no doubt dispersed by his family, and in this way the diamond, weighing 34 carats, would be thrown into the market. Hence its purchase by Frederick Henry of Orange, in 1647, is easily accounted for. A diamond of its weight, rare enough in those days, at least in Europe, would naturally be associated with its owner, the famous collector, M. Sancy, and as the largest, weighing 54 carats, was known as the "Great Sancy"; the other
I've seen of it. I have also seen a couple photos. Unfortunately,
none of them are clear enough to be worth showing here.
At the time of the marriage of Prince Albert of Prussia with Princess Mary of Sachsen-Altenburg in Berlin, the bridge was described in the newspaper accounts of the wedding as wearing "the crown necklace, with the celebrated 'Sancy' diamond." Much surprise and mystification were caused by this statement, apparently made on authority; for amongst the many strange peregrinations of the "celebrated 'Sancy' diamond," a visit to the Prussian "Schatz-Kammer" had not hitherto been mentioned. We are now in a position to clear up the mystery, thanks to the subjoined extract from an official communication obligingly made to us on June 7th, 1881, by Herr Smernitz, minister of the Royal Household, Berlin: --
"Amongst the numerous diamonds of the Royal Treasury there is one only possessing historical interest. This is a brilliant of splendid shape weighing 34 carats, worn as a pendant to a necklace, and known as the 'Little Sancy.' This diamond was bought by Prince Frederick Henry of Orange, who died in the year 1647, and who was grandfather of King Frederick I of Prussia. Through King Frederick it passed from the Orange bequests to the Prussian Royal Treasury."
It thus appears that at her wedding Princess Mary of Sachen-Altenburg wore not the celebrated "Sancy" diamond, but this "Little Sancy", correctly enough described as attached to the "crown necklace." Of the very existance of this "Little Sancy", the public has been hitherto profoundly ignorant. Nor does it even now appear by what right it bears the name "Sancy" at all. The explanation, however, is not far to seek. We already have seen that Nicholas Harlai, Signeur de Sancy, was evidently a diamond collector, and that he died in the year 1627. After his death his collection was no doubt dispersed by his family, and in this way the diamond, weighing 34 carats, would be thrown into the market. Hence its purchase by Frederick Henry of Orange, in 1647, is easily accounted for. A diamond of its weight, rare enough in those days, at least in Europe, would naturally be associated with its owner, the famous collector, M. Sancy, and as the largest, weighing 54 carats, was known as the "Great Sancy"; the other
Black Orlov Diamond
According to the legend, the Black Orlov is said to have taken its name from the Russian Princess Nadia Vyegin-Orlov who owned it for time during the mid-eighteenth century. It is a 67.50-carat cushion-cut stone, a so-called black diamond (actually, a very dark gun-metal color). It is reported to have belonged to a nineteenth-century shrine near Pondicherry, India, and to have weighed 195 carats in the rough.
The stone has been exhibited widely, including at the American Museum of Natural History in 1951, the Wonderful World of Fine Jewelry & Gifts at the 1964 Texas State Fair, Dallas, and the Diamond Pavilion in Johannesburg in 1967.
The Black Orlov was owned by Charles F. Winson, New York City gem dealer, who valued it at $150,000. It is mounted in a modern diamond-and-platinum necklace. An alternate name is the Eye of Brahma Diamond. In 1969, the stone was sold for $300,000. It was resold in 1990 at Sothebys for $99,000. Source: Diamonds - Famous, Notable and Unique by GIA,
The stone has been exhibited widely, including at the American Museum of Natural History in 1951, the Wonderful World of Fine Jewelry & Gifts at the 1964 Texas State Fair, Dallas, and the Diamond Pavilion in Johannesburg in 1967.
The Black Orlov was owned by Charles F. Winson, New York City gem dealer, who valued it at $150,000. It is mounted in a modern diamond-and-platinum necklace. An alternate name is the Eye of Brahma Diamond. In 1969, the stone was sold for $300,000. It was resold in 1990 at Sothebys for $99,000. Source: Diamonds - Famous, Notable and Unique by GIA,
The Vivid White Diamond
typical run-of-the-mill diamond has an efficiency rating of 35.5% and an A.L.R rating of five (5). Translation: The typical diamond returns 35.5% of refracted light back to the viewer’s eyes; leaks/wastes 64.5% through the pavilion floor of the diamond and only redirects the light internally five (5) times before it leaks out or is returned to be viewed.
A pinball machine is a good analogy here. Think of every ray of light as a pinball. Once the pinball is shot (refracted) into play within the machine (diamond) you score more points (flashes of light) every time the pinball bounces around (internal light reflections) before it is returned back to you in the form of sparkle. Sparkle equals efficiency rating x internal light reflections. So we could say that the typical diamond returns 35.5% of absorbed light and amplifies it five (5) times to give you a sparkle return of 177.5%. You get 77.5% more light then you put in even though there was a lot of waste. This is why most people who see practically any diamond will,at first blush, be impressed. The truth is even bad diamonds look pretty good. But, what if we’re not just looking for pretty good? What if our goal is to have the highest efficiency rating; the highest amplified light return? What would that look like? Well, let’s see, if we are going to hold the most breathtaking diamond in the world we’re going to have to be patient, and I mean really patient! The typical diamond that is cut these days is cut from two types of rough (name for what diamonds look like out of the ground) macles and flats.
A pinball machine is a good analogy here. Think of every ray of light as a pinball. Once the pinball is shot (refracted) into play within the machine (diamond) you score more points (flashes of light) every time the pinball bounces around (internal light reflections) before it is returned back to you in the form of sparkle. Sparkle equals efficiency rating x internal light reflections. So we could say that the typical diamond returns 35.5% of absorbed light and amplifies it five (5) times to give you a sparkle return of 177.5%. You get 77.5% more light then you put in even though there was a lot of waste. This is why most people who see practically any diamond will,at first blush, be impressed. The truth is even bad diamonds look pretty good. But, what if we’re not just looking for pretty good? What if our goal is to have the highest efficiency rating; the highest amplified light return? What would that look like? Well, let’s see, if we are going to hold the most breathtaking diamond in the world we’re going to have to be patient, and I mean really patient! The typical diamond that is cut these days is cut from two types of rough (name for what diamonds look like out of the ground) macles and flats.
Macle
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