Question: Signet Jewelers owns what Delaware based retailer, along with Kay and Jared?

Context paragraphs:
Leekes: Leekes is a Welsh based retailer, with seven stores based in South Wales, South West England and The Midlands.

Shoemall: ShoeMall.com is an online shop for men’s and women’s footwear based at Chippewa Falls, Wisconsin.  They are an entirely web based retailer developed in 1999 by parent company- Mason Companies.

Dover Federal Credit Union: Dover Federal Credit Union, is a federally charted credit union headquartered in Dover, Delaware and is regulated by the National Credit Union Administration (NCUA).  There are currently seven locations with branches in Dover, including one branch located at Dover Air Force Base, Smyrna, Milford, New Castle, and their newest location in Middletown.  Dover Federal is the largest credit union in Delaware based on assets, which are in excess of $460MM.  They serve over 400 Select Employer Groups and have over 48,000 members.

ULTRA Diamonds: ULTRA Diamonds was the largest seller of fine jewelry in factory outlet and value centers in the United States.  ULTRA was a manufacturer as well as a direct importer of diamonds, gemstones, and gold jewelry.  At one point, Ultra operated over 100 stores in outlet centers and 38 other format locations (primarily licensed jewelry departments).  After its acquisition by Signet Jewelers, ULTRA Diamonds stores were re-branded as Kay Jewelers.

Ernest Jones (retailer): Ernest Jones is a British jeweller and watchmaker.  Established in 1949, its first store was opened in Oxford Street, London.  Ernest Jones specialises in diamonds and watches, stocking brands such as Gucci and Emporio Armani.  Ernest Jones is part of the Signet Jewelers group.

Zale Corporation: The Zale Corporation is an American jewelry retailer, incorporated in Delaware in 1993.  The principal executive offices are located in Irving, Texas.

Sterling Jewelers: Sterling Jewelers, Inc. is an American specialty jewelry company headquartered in Akron, Ohio.  The company was founded in 1910 by Henry Shaw (the father of Jerry Shaw, the chairman emeritus of Sterling today), from LeRoy's Jewelers in Lorain, Ohio.  Sterling Jewelers is a wholly owned subsidiary of UK-based Signet Jewelers Limited (listed on the New York Stock Exchange under the symbol SIG), having been acquired in 1987.

Signet Jewelers: Signet Jewelers Ltd. (Ratner Group 1949-1993 then Signet Group plc to September 2008) is the world's largest retailer of diamond jewelry.  The company is domiciled in Bermuda and headquartered in Akron, Ohio, and is listed on the New York Stock Exchange.  As of 14th march 2016 the company has been delisted from the London Stock Exchange, following reports that less than 1% of their annual trading volume was conducted via the platform.  The group operates in the middle market jewelry segment and has number one positions in the U.S., Canada and UK speciality jewelry markets.  Certain brands (Jared in the U.S. and H. Samuel/Ernest Jones/Leslie Davis in the UK) operate in the upper middle market.  Signet Jewelers owns and operates the companies Zales, Kay Jewelers, and Jared.

Committee of 100 (Delaware): The Committee of 100 is a Wilmington, Delaware based lobbying group that deals with issues relating to economic development, local finance, and land use policy in the state of Delaware, particularly the northern part of New Castle County.  It was founded in 1967.

Battery Giant: Battery Giant is a privately owned battery retail franchise based in Sterling Heights, Michigan.  Founded in 2007 as an e-commerce based retailer, the company now operates multiple locations throughout the United States, Puerto Rico, and Panama.

Supporting paragraphs: Signet Jewelers Zale Corporation
Answer: Zale Corporation