Shane Company or Shane Co. is the largest privately owned jeweler in the United States. The company is a direct diamond, ruby, and sapphire importer that operates twenty retail stores across the United States and their website ShaneCo.com. The company was founded in 1971, and is based in Centennial, Colorado. Shane Co. operates jewelry stores in Arizona, California, Colorado, Georgia, Indiana, Kansas, Kentucky, Minnesota, Missouri, Oregon, Tennessee, Utah, and Washington. It offers engagement and wedding jewelry, such as single rings, wedding sets, wedding bands, and anniversary rings, and loose diamonds, rubies, and sapphires. The company also provides fashion rings, fashion pendants, rings, bracelets, necklaces, cuff links, key chains, money clips, and tie clips for men and women. In addition, it engages in the operation of an online store at shaneco.com. Shane Co. was founded in 1971 and is based in Greenwood Village, Colorado.