For most of recorded history, rubies have been the most valuable gems. Rubies are very rare: it's almost impossible to mine flawless rubies and many mined rubies are enhanced with heat and fracture filling to improve their appearance. Chatham's lab-grown rubies have a pigeon's blood color and exceptional clarity worthy of this gem's ancient name ratnaraj: King of Gems.
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.
Ruby Earrings
Ruby Pendant
