Tourna & Company (ASE: TOUR) (known colloquially as Tourna or Tourna's) is a Diadochian multinational luxury jewelry and specialty retailer, having headquarters in Piraeus, the largest city in Diadochia. Tourna sells jewelry, sterling silver, china, crystal, stationery, fragrances, watches, personal accessories, as well as some leather goods. Tourna is renowned for its luxury goods and is particularly known for its diamond jewelry. Tourna prides itself on being renown for its taste and style.