Beau Sancy Its larger sibling diamond, the Grand Sancy, was sold to James I of England for his Queen, Henrietta Maria. The Beau Sancy was acquired by the Queen of France, Marie de Medicis. From Marie de Medicis, it passed to the Dutch King William, later William III of England, and his wife Queen Mary II. In 1701 it passed from the Dutch royal family to Frederick I of Prussia. Beau Sancy The Beau Sancy is a modified "pear double rose cut" diamond found in India that has been owned by a number of European royal houses. In May 2012, it was
Vickrey auction mainly considered auctions where only a single, indivisible good is being sold. The terms "Vickrey auction" and "second-price sealed-bid auction" are, in this case only, equivalent and used interchangeably. When either a divisible good or multiple identical goods are sold in a single auction, however, these terms are used differently. Vickrey auctions are much studied in economic literature but uncommon in practice. Generalized variants of the Vickrey auction for multiunit auctions exist, such as the generalized second-price auction used in Google's and Yahoo!'s online advertisement programmes (not incentive compatible) and the Vickrey-Clarke-Grove Auction (incentive compatible). In a Vickrey auction with