The Sancy diamond is the diamond that has the richest history among all the diamonds in Europe and it also has the most unconventional look with its pale yellow color, which also makes it unique from all the white diamonds considered as the most valuable ever to be found. It is a 55.23 carat shield-shaped stone that is believed to have been originated from the Golconda region in India, the same place where the Koh-i-noor and Darya-ye Noor originated from. It belongs to the list of the first large diamonds in history that were cut with symmetrical facets and it is very unique in that it has no pavilion. It only has a pair of back-to-back crowns.
Henry III of France borrowed it to use it as a decoration for his very small cap that he often wore to hide his baldness. At that time, such diamond was in the possession of Nicolas de Harlay, Seigneur de Sancy, who was a gem stone collector and a prominent figure in the French Court. Another royal borrowed it as well but not for fashion purposes. Instead it was used for financing the royal’s armies. There are stories that the precious gem has never reached its destination because De Sancy’s messenger has run away with it. But it was found out from De Sancy’s investigation that the gem was inside the stomach of his loyal and trusted messenger who was unfortunately robbed and murdered.
After that, the Sancy diamond travelled to England and back to France where it has continued to be in the ownership of royalty and wealthy nobles. You can see such historical precious stone at the Apollo Gallery together with the Regent and Hortensia. For additional info, follow this link.