September Birthstone: Sapphire

About Sapphire: the September Birthstone

The September birthstone is sapphire, the blue variety of corundum. Sapphire is graded mainly on color, and the most sought-after stones show a vivid, saturated blue of medium tone. Corundum is one of the hardest natural materials there is. Sapphire rates 9 on the Mohs scale, second only to diamond, which makes it a sensible choice for a ring worn every day.

Most sapphire on the market is heat treated to improve color and clarity. This is a long-standing and accepted practice, and a heated stone is as hard and as durable as an untreated one. Untreated sapphire of good color is rarer and costs more, so treatment is the first thing to ask about when you compare two similar stones.

Blue is the traditional color for a September birthday, but sapphire occurs in nearly every other shade: pink, yellow, green and purple. Only red is excluded, because red corundum is classed as a different gem. For a birthstone gift the classic blue is the usual choice.

That hardness means sapphire takes almost any setting. A prong setting shows the most stone. A bezel wraps the edge for extra protection, which suits a ring that takes knocks. Pendants and necklaces put the stone under less stress still. The listing above shows sapphire rings, pendants and necklaces that you can filter and sort.

Why buy sapphire from ATL Luxury Jewelry?

ATL Luxury Jewelry has served Atlanta from its Snellville showroom since 2008 and holds 300+ five-star Google reviews. Catalog pieces are made to order, and you can see the stone and the setting in person at 1905 Scenic Hwy N Ste 230, Snellville, GA 30078.

Cleaning, inspection and prong tightening are free in store, which matters on a sapphire ring worn daily because prongs loosen with wear. Resizing, polishing and repairs are covered by our care plans, and engraving is free at purchase. If you want a sapphire that is not in the listing, we design custom pieces with you in the showroom. Book a design consultation to start.