Sancy Hope diamond. The Sancy was in the collection of Vasiliy Rudanovsky until 1828 when purchased by Prince Demidoff for £80,000. It remained in the Demidov family collection until 1865 when sold to Sir Jamsetjee Jeejeebhoy, an Indian prince, for £100,000. He sold it only a year later, creating another gap in its history. It reappeared in 1867, displayed at the Paris Exposition, carrying a price tag of one million francs; the gem then vanished again for forty years. The Sancy next surfaced in 1906 when bought by William Waldorf Astor, 1st Viscount Astor, from famous Russian collector A.K.Rudanovsky. The prominent
3M for $943 million. On October 13, 2010, 3M completed acquisition of Arizant Inc. In December 2011, 3M completed the acquisition of the Winterthur Technology Group, a bonded abrasives company. 3M follows a business model based on "the ability to not only develop unique products, but also to manufacture them efficiently and consistently around the world". On January 3, 2012, it was announced that the Office and Consumer Products Division of Avery Dennison was being bought by 3M for $550 million. The transaction was canceled by 3M in September 2012 amid antitrust concerns. In May 2013, 3M announced that it was