August Birthstones: Peridot, Spinel, and Sardonyx

August Birthstones: Peridot, Spinel, and Sardonyx

While some months have only one birthstone, August has three. The August birthstones are peridot, spinel, and sardonyx. Here’s what you should know about these stunning stones and where to find the perfect gift for those born in August.

What is the August Birthstone?

August has three birthstones: peridot, spinel, and sardonyx. Sardonyx is the month’s original birthstone, found over 4,000 years ago.



Peridot is a yellow-green gemstone and a magnesium-rich variety of the mineral olivine. It’s associated with Pele, the fierce Hawaiian Goddess of fire. Just like a fire burns everything in its way, peridot can help clear away negative energies that hold you back.

In history, peridot has often been confused with stones such as topaz and emerald. Some historians insist Cleopatra’s emerald collection was peridot.

Peridot can be found in many sites worldwide, including Vietnam, China, Pakistan, and the United States.



The name “spinel” comes from the Latin word “spina,” meaning “thorn.” It comes in a range of colors, including red, pink, purple, orange, and green. Because of its various forms, spinel has often been mistaken for other gems. And yet, some of history’s most famous rubies have actually turned out to be spinel, such as the “Black Prince’s Ruby” from the Imperial State Crown.

The symbolism of spinel varies depending on its color. For example, red spinel is associated with romance and passion and is said to bring harmony. It was also once believed to remedy inflammatory diseases.



The oldest of the August birthstones, sardonyx, is a combination of sard and onyx minerals, which form the reddish-brown stone. In ancient times, sardonyx was often used in Roman seals and signet rings. Soldiers would wear sardonyx rings for protection.

The sardonyx birthstone is associated with happiness, courage, and clear communication. It is believed to strengthen marriage and relationships while attracting friends and good fortune.


Best August Birthstone Jewelry

I’ve put together a curated selection of the best peridot, spinel, and sardonyx jewelry to buy for yourself or a loved one born in August.

Harry Winston

Kaleidoscope Spessartite Pendant

An explosion of colors and unbelievable vibrancy all wrapped up in an innovative design. This fiery masterpiece of light and pattern astounds with its array of peridots, yellow sapphires, and diamonds.

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Tiffany & Co.

Paloma’s Melody Bangle

An 18k rose gold bangle that shines with black spinel. It’s sleek and stylish and boasts interlocking bands that glide with the body. Perfect for that person who appreciates contemporary beauty.

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Mora Collection

Carnelian & Sardonyx Earrings

Sardonyx is one of the more affordable stones out of the three, but that doesn’t make it any less charming. These carnelian and sardonyx earrings are an excellent gift for that special someone born in August.

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David Yurman

Petite Chatelaine® Pavé Bezel Ring

An 18k yellow gold ring with peridot and diamonds. Simple, stunning, and sparkling, it takes birthstone jewelry to whole new heights. It looks especially beautiful when paired with all-white ensembles.

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About The Author


Debbie Azar is the Co-Founder and President of Gemological Science International (GSI), one of the largest gemological organizations in the world, and a distinguished leader in the global diamond and jewelry industry. As an executive with extensive knowledge of the jewelry and gem lab industries, her entrepreneurial skills and vision have helped GSI achieve rapid and continuous growth worldwide, establishing 13 leading-edge gemological facilities on four continents. She currently serves on the boards of the Jewelers Vigilance Committee, Responsible Jewellery Council, and Jewelers for Children, and is a member of the 24 Karat Club of New York. She has been featured in Forbes, Daily Mail, Good Morning America, Bloomberg, Bloomberg Businessweek, Fox Business, Fox5, CBS2, BOLDTV, Varney&Co, The Street, and NASDAQ, among others.

Debbie Azar

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