sentences:  One well-known prong setting is the "Tiffany setting", a trademarked engagement ring design created by Charles Tiffany in the 1880s that has become the signature line of Tiffany & Co. engagement rings.The Tiffany setting popularized the general use of prong setting engagement rings, and as of 2012, the trade association Jewelers of America reports that multi-prong solitare rings are the most sought-after form of engagement ring available.While some in the jewelry industry use the term "Tiffany setting" to describe multi-prong solitaire rings, the Tiffany setting is a specific trademarked design of Tiffany & Co.