Lab-Grown Diamonds with Grading Report Lab-Grown Diamonds with Grading Reports are a popular choice among Leonard & Hazel™ Customers. Visit our Jewelers Showcase Today for Lab-Grown Diamonds Optically, chemically, and physically identical to Natural Diamonds Lab-Grown Diamonds are not simulants. Scientists create them in a lab. They start with rough crystals and are grown using … Continue reading Lab-Grown Diamonds with Grading Report