Lab-grown diamonds have revolutionized the jewelry industry. But are they right for you? Here's everything you need to know to make an informed decision. The Bottom Line (TL;DR) Lab-grown diamonds are real diamonds—chemically, physically, and optically identical to natural diamonds. The only difference is origin. They cost 50-70% less than natural diamonds of equivalent quality. What Are Lab-Grown Diamonds? Lab-grown diamonds (also called lab-created, synthetic, or cultured diamonds) are created in controlled laboratory environments using advanced technology that replicates the...