The Beau Sancy Diamond – a Gem in the Revolutionary Form of Cut From the 15th Century

On May 15, 2012 was the Beau Sancy diamond in Geneva by the auction house Sotheby’s for no less than 9.04 million Swiss francs (equivalent to approximately 7.5 million euro) increased by an anonymous bidder. This proud sum shows that prestige of 35-karätigen gemstone, which was found in the 15th century in the Indian diamond mine, has not declined over the course of time. On the contrary, more than ever the Beau Sancy fascinated diamond today due to its stunning appearance, its meaning for the art of polishing of diamonds, and its history, which he brought to owned by Kings and Queens. Edwin Streeter took the Beau Sancy diamond in 1882 in his treatise about famous diamonds with the title Great diamonds of the world. Their history and romance on.
In the following you can learn interesting facts you should know about these magnificent diamonds:

The Beau Sancy diamond and its qualitative characteristics

The Beau Sancy diamond runs through several outstanding properties attention, such as by its excellent color and its absolute purity. Although he was classified by a testing Institute in this respect so far, one assumes, that’s when the Beau Sancy to a diamond of D color (very fine white +) and of purity IF (internally flawless) is. The Beau Sancy diamond was found in a mine of Golconda Indian region, which is known historically as the origin of very high quality diamonds. So, he belongs to the category of the diamond type II a, which are known as the “purest of the pure” because they have no chemical impurities or structural damage in the Crystal structure.
Also, the Beau Sancy diamond features a stately size of 34.98 carats. What distinguishes him but more than anything, is his for the trend-setting time touch form.

The Beau Sancy diamond and its innovative shape of grinding

Today, one assumes that the Beau Sancy was purchased diamond against 1475 by Charles the bold, the Duke of Burgundy, who sent him together with two other gems on the Flemish diamond Sander Lodewyk van Berquem from Bruges to make him grinding and polishing. Lodewyk van Berquem is today referred to as “Father of the modern diamond polishing” because he was responsible in this area for revolutionary innovations. He should have been the first way, which ensured to arrange the facets of the diamond symmetrically, so the cinema to beautify and strengthen the fire and the brilliance of the gems. In addition, he improved the polishing process by using diamond powder. The cut form, introduced by him, which application was also for the Beau Sancy diamond, is characterized by its Teardrop shape with identical faceting on the top and bottom. It is also known as Pendeloque or Briolette .
A sketch from the 17th century by the Gemologen Thomas Cletscher (1598-1668), which is now kept in the Boymans-van Beuningen Museum in Rotterdam, illustrates this harmonious arrangement of the 110 facets of the Beau Sancy diamond.

So the Beau Sancy diamond came to its name

Towards the end of the 16th century, the Beau Sancy diamond was purchased by Nicolas Harlay de Sancy, a French Ambassador. This has also worked as a collector and dealer of diamonds and came on his many travels, he and others undertook on behalf of Heinrich III. to Constantinople to Sultan Selim II., in the possession of two diamonds, which were – named after him with Sancy the larger 55,23 carats as the Sancy and the smaller as the Beau Sancy.

The Beau Sancy diamond at the French Royal Court

In 1604, Nicolas Harlay de Sancy sold the diamond for 75,000 Livre on the French King Henry IV., of him his wife Maria de’ Medici made the gift. They left in their Crown integrate him as top, the she wore during her Coronation ceremonies him year 1610. The dating back to this time silver is still intact with claws in gold.

The Beau Sancy diamond in the possession of the Dutch Royal House of Orange-Nassau

Marie de’ Medici arrived in 1838 into exile in Amsterdam, where she was obliged because of its large debt, to sell the Beau Sancy diamond. He found a buyer who paid 80,000 Gulden for him in Friedrich Heinrich of Nassau. In 1647, he served as a dowry for Maria Henrietta Stuart, the bride of the new Dutch King William II. After the Beau Sancy diamond on Wilhelm III. was been passed down, using it in the year 1677 again as a wedding gift for his wife Maria Stuart.

The Beau Sancy diamond comes to the Prussian Royal Court

After the death of the Queen, the Beau Sancy was inherited diamond to the cousin of William III., the Prussian King Friedrich I, who integrated it into his Crown made. In the possession of the Royal House of Prussia, the diamond was it up to its auction at Sotheby’s in 2012.
Friedrich II., bequeathed the gemstone 1740 of his wife Elisabeth Christine, who carried him together with a fabric loop as well as a bouquet of nine diamonds of various sizes.
In an inventory of the year 1913 the speech is that the gem was used as pendant for a necklace 22 diamonds. This jewelry piece was part of a set of multiple matching jewels.
1972 diamond and the Beau Sancy showed diamond together the Sancy in a gallery in Helsinki and 2005 was the Beau Sancy diamond on the exhibition treasure houses of in Germany. Art noble owned be admired in Munich.

Keep to the historical significance of the Beau Sancy diamond, which at times owned by four royal houses stood in front and is it about clearly, how important was the novel design of the facets for the future development of grinding technology, so can be easier understood why he was able to achieve such a high lovers price at the auction.

The result of the centuries-long efforts of the optimization of the diamond cut is the brilliant cut. Have you has diamond interest, which allows a maximum reflection of incident light rays in the colors of the Rainbow spectrum due to its ideal cut shape or the like the Beau Sancy on a gem excellent quality in the color and purity? At RENÉSIM, we like to meet your relevant ideas. Look around like in our large Diamond database or contact us.