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Emerald by day. Ruby by night. Alexandrites are a rare variety of the mineral chrysoberyl that changes color from bluish-green in daylight to purplish-red in incandescent light. Chatham is thrilled to make this rare gem available for people who have always wanted one at a more affordable price over mined.
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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. A few years after his passing, his lifelong dream of diamond cultivation finally became a reality for his son, Tom in 1993.
Today, Chatham is still recognized as the leader of laboratory-grown gemstone and diamond jewelry revered for its superior quality and everyday elegance. The company's unbeatable Lifetime Warranty and Certificate of Authenticity assure reliability and long-term value.
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