Allison-Kaufman Company, in business since 1920, is one of the oldest and most respected diamond jewelry manufacturers in the United States. Our family owned business has had a commitment to manufacturing the best in fine diamond jewelry for nearly a century. Our quality and workmanship is unsurpassed and our styling is legendary. Our knowledgeable and experienced staff selects only the most brilliant diamonds to be meticulously hand set into exquisite, handcrafted Allison-Kaufman diamond jewelry.