Corundum of Many Colors: Sapphire

As we turn our calendars to September, we start thinking of things like heading back to school, sipping on a pumpkin spice latte, and planning our fall fashions. For those celebrating a birthday in September, they’re thinking of their birthstone: sapphire!

Although sapphire typically refers to the rich blue gemstone variety of the mineral corundum, this royal gem actually occurs in a rainbow of hues. Sapphires come in every color except red, which would then be classified as ruby.

Trace elements like iron, titanium, chromium, copper, and magnesium give naturally colorless corundum a tint of blue, yellow, purple, orange or green, respectively. Sapphires in any color but blue are called “fancies.”

Pink sapphires, in particular, tow a fine line between ruby and sapphire. In the U.S., these gems must meet a minimum color saturation to be considered rubies. Pinkish orange sapphires called padparadscha (from the Sri Lankan word for “lotus flower”) can actually draw higher prices than some blue sapphires.

Due to the remarkable hardness of sapphires—which measure 9 on the Mohs scale, second only to diamond—they aren’t just valuable in jewelry, but also in industrial applications including scientific instruments, high-durability windows, watches, and electronics.

Sapphires make stunning gifts for anyone born in September or celebrating a 5th or 45th wedding anniversary, so be sure to visit an AGS jeweler. They will help you find that perfect gift, whether you’re seeking the classic blue or another shade from the sapphire rainbow.

Need some inspiration? View this collection of designs featuring the sapphire!

Setting our Sights on Sapphires

By Robin Skibicki

As we change our calendars to September, our sights are set on cooler weather, and on sapphires!

Sapphires are known for their beautiful blue hue, but they can also be found in a variety of pinks, yellows, and oranges, even peach, green, and violet colors. These colors are referred to as fancy sapphire.

One of the most sought-after fancy sapphires is the padparadscha. Its pink-orange coloration can be compared to that of a tropical sunset. Princess Eugenie, a cousin to Princes William and Harry, received an oval cut padparadscha sapphire ring for her engagement, bringing this rare gemstone into the limelight.

Omi-sapphire

Padparadscha sapphire and diamond ring by Omi Privé. This ring is the AGTA 2018 Spectrum Award Winner.

Sapphires can also display the celestial-like optical phenomena, asterism, adding the name “star” to this type of sapphire.

Suna-PinkStarSapphire-loose

Pink star sapphire cut en cabochon, by Suna Bros.

September babies are lucky to have a birthstone that comes in a variety of colors! Below are a few images from American Gem Society (AGS) members that showcase the chromatically-gifted sapphire. To find an AGS-credentialed jeweler near you, click here!