Chatham

After creating emeralds in 1938, laboratory-grown rubies, alexandrites, and a variety of sapphires all came to fruition over many decades of research in the hands of Carroll Chatham.

By duplicating the conditions deep within the earth—the temperature, the pressure, and the chemical makeup—his laboratory succeeded in growing gemstones over a course of a year’s time. These gemstones possess the same physical, optical, and chemical properties as their mined counterparts.

Today, Chatham is still recognized as the leader of lab-grown gemstone and diamond jewelry revered for its superior quality and everyday elegance. The company's unbeatable Lifetime Warranty and Certificate of Authenticity ensure reliability and long-term value.