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.
Since 1938 Chatham has stood for quality, reliability, and integrity.
Our commitment to excellence ensures that each gemstone meets the highest standards of quality and craftsmanship before they reach your hands.
That is why we stand behind our lab grown gemstones through our lifetime warranty.
For every purchase made, Chatham plants a tree on your behalf! Chatham is dedicated to replenishing the earth’s resources and mitigating the environmental impact of the jewelry industry.
Your purchase with Chatham takes a significant step toward a greener planet.
Trees are a source of oxygen, they provide habitats for wildlife, prevent soil erosion, and contribute to the overall health of our planet.
Find the One Tree Planet logo on your Certificate of Authenticity.
