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The ultimate blue gem
The September birthstone
The 5th and 45th anniversary gem
Mined in Madagascar, Sri Lanka, Kashmir, Burma, and Montana
A symbol of the soul
A variety of corundum, just like ruby
The gem of truth, faithfulness, and the soul, sapphires are a perfect choice for engagement rings. The world’s most famous engagement ring is a sapphire: the 12-carat blue sapphire ring worn by Kate Middleton, an heirloom from Princess Diana. Chatham’s lab-grown blue sapphires have a velvety blue color and pure clarity seen in only the best mined gems.
Blue Sapphire is your gem because... You love blue
You are born in September
You are loyal and honest
You have beautiful blue eyes
Your style icon is Kate Middleton
Your anniversary is in September
Your child’s birthday is in September
It’s your 5th or 45th
Chatham Lab-Grown Sapphires Blue sapphire is the most difficult gem crystal that Chatham grows. Color in sapphire often follows the crystal structure in color zones. Even the best sapphire crystal has different shades of blue in it. That’s why Chatham lab-grown sapphires come in three lovely shades of blue, not just one.
The ultimate blue gem
The September birthstone
The 5th and 45th anniversary gem
Mined in Madagascar, Sri Lanka, Kashmir, Burma, and Montana
A symbol of the soul
A variety of corundum, just like ruby
About Sapphires 
