Quick Answer
What is September’s birthstone?
September’s birthstone is sapphire. Deep blue sapphire — September's birthstone — has symbolized wisdom, royalty, and faithfulness across every major culture. Hand-set into rings, pendants, and earrings at our Snellville atelier.
About Sapphire — the September Birthstone
Sapphire is the blue (and every-color-except-red) variety of corundum — September’s traditional birthstone — graded primarily by color saturation. The finest sapphires show a vivid royal-blue with strong saturation, the look historically associated with Kashmir mines. Sapphire sits at 9 on the Mohs scale — second only to diamond, ideal for daily engagement and statement rings.
ATL Luxury Jewelers stocks sapphire across engagement rings, halo and three-stone rings, pendants, stud and drop earrings, and tennis bracelets set in 18K gold or platinum. Most natural sapphires are heat-treated to deepen color — standard and disclosed practice. Unheated sapphires with strong natural color command significant premiums.
Sapphire comes in every color except red (red corundum is ruby): blue, pink, yellow, green, purple, orange, and the rare orangey-pink padparadscha. For September birthstone jewelry the classic blue is traditional. Sapphire is also the choice for modern non-diamond engagement rings — Princess Diana’s sapphire (now Kate Middleton’s) launched a wave of blue-stone engagements.
Why buy sapphire from ATL Luxury Jewelers?
For over 15 years, ATL Luxury Jewelers has sourced natural sapphire at our Snellville, GA showroom. We disclose treatments on every stone and source from established suppliers across Sri Lanka, Madagascar, Australia, and Montana.
Every sapphire piece includes lifetime cleaning, prong-tightening, and rhodium-plating (for white gold) at no charge — a policy we’ve held since 2009.
All Twelve Birthstones
Browse the other eleven birthstones — every month, every stone, every traditional and modern alternate.
