Over 80 years ago, Carroll Chatham discovered how to grow emeralds in a San Francisco garage and the world’s leading lab-grown gemstone company was born. By replicating the conditions deep within the earth, Chatham grows gemstones with the same physical, optical and chemical properties as their mined counterparts.

Today, Chatham is the leading authority in gemstone growth, color and cutting. That’s because Chatham’s multi-generational legacy centers around growing the finest quality gemstones. Even better, we offer the widest selection with 14 lab-grown color gems and a variety of lab-grown diamonds. Our team of master gemstone cutters undergo a 12-month training program to precision hand cut gemstones. As one of the few vertically integrated brands in the industry, we offer exceptional quality and value.

This craftsmanship also extends to our luxury lab-grown jewelry. Our award-winning jewelry designs include color fashion, bridal, diamond fashion, motifs, upper end and statement pieces. As the sole luxury lab-grown brand, our jewelry has proven high sell-thru rates. When you partner with us, we offer buy-ins for every budget and powerful benefits. After all, who is better to trust with your lab-grown jewelry than the original architects themselves?