Diamond Nexus Labs is a division of the Lautrec Corporation. They were founded in 2004 with the purpose of bringing to the public the powerful benefits of the lab-created precious gemstone revolution. Breakthroughs in material science and engineering, most of which have occurred in just the last few years have made possible the creation of rubies, emeralds, sapphires, and diamond simulants. These gemstones rival the quality of mined stones and are the equal of anything mined from the earth, but are offered at a fraction of the cost. World's largest selection of flawless lab-created diamond jewelry. Free shipping, lifetime warranty, 30 day no-worry returns and world-class customer service.