Sapphire Is What Birthstone? Discover Hidden Meanings & More

Birthstones are everywhere—on rings, pendants, charms, baby gifts, and even Instagram reels. But while we adore the glint of a gem on our fingers or necklines, how many of us actually know what our birthstone means?

Take sapphire, for instance. Elegant, elusive, deeply blue. A gem that seems to hold a secret in every sparkle. Yet most people wear sapphire jewelry without ever learning its deeper symbolism, its royal connections, or the sacred legends that span thousands of years.

So if you’re asking about the meaning of sapphires as a birthstone, you’re in for a treat.

In this blog, we’ll dive into why sapphire is the September birthstone, what makes it one of the most beloved gems in the world, and why choosing sapphire over more obvious stones (hello, diamonds) might just be the chicest thing you do this year.

What Month Is Sapphire the Birthstone For?

When it comes to birthstones, some gems seem to have more presence, more prestige, more mystique. Sapphire is one of them. It's not just a beautiful stone—it’s a gemstone steeped in royal history, spiritual significance, and timeless elegance. But let’s clear up the most basic question first: sapphire is the birthstone for which month, exactly? If you were born as summer fades into fall, you might be in for a sparkling surprise.

The September Birthstone: A Quick Overview

Let’s settle this right away: sapphire is the birthstone for September. Whether you’re a Virgo or Libra, sapphire is your celestial companion. It symbolizes clarity, loyalty, and wisdom—all qualities we’d like to think we pick up around the time summer fades into fall.

The sapphire birthstone has long been associated with royalty and divine favor. And for those born in September? You lucked out.

Where the Tradition of Birthstones Comes From

The idea of wearing birthstones dates back thousands of years. Some trace the tradition to the Ten Commandments—or more specifically, the 12 stones on Aaron’s breastplate in the Book of Exodus. Later, religious scholars linked these to zodiac signs, months, and the modern list of birthstones we know today.

The version most of us follow in the United States was standardized in 1912 by the National Association of Jewelers. Since then, sapphire has reigned over September in all its deep-blue majesty.

How Sapphire Became the September Icon

So why sapphire for September? Simple. Sapphires are one of the most durable gemstones, rich in symbolism, and irresistibly luxurious. They’re also tied to the ancient Greek word sappheiros, thought to mean “blue stone.” As the skies deepen in early autumn, it’s easy to see why sapphire feels like the perfect companion for the month.

What Makes Sapphire So Special?

In a world overflowing with beautiful gemstones, there's something about sapphires that feels... different. It doesn’t scream for attention like a ruby or dazzle with fire like a diamond—instead, it exudes quiet strength, depth, and mystery. From engagement rings to royal heirlooms, sapphires have enchanted cultures for centuries. But beyond the deep blue allure lies a rich geological and historical story. So what makes this stone so iconic? Let’s start by getting to know its true nature.

Sapphires Are a Type of Corundum

Chemically speaking, sapphire is a variety of corundum, the same mineral as ruby. The only difference? Color. Red corundum is called ruby; everything else falls into the sapphire category, especially the iconic blue.

Corundum is incredibly tough, second only to diamond, making sapphires perfect for rings, bracelets, and everyday wear.

Why Blue Sapphire Is the Most Coveted Color

While sapphires come in a rainbow of shades (more on that in a moment), the blue sapphire is the classic. Its deep hue has enchanted royalty, priests, and romantics alike. Whether it’s the velvety blue of Kashmir sapphires or the brighter tone of Sri Lankan stones, there’s a blue for every mood.

And if you’re thinking of icons, let’s not forget the Star of India—one of the most famous sapphires ever discovered.

Other Colors of Sapphires: Yes, They Exist

Not into blue? You’re in luck. Sapphires also come in pink, yellow, green, purple—even black. These are known as “fancy sapphires” and are just as durable, just as brilliant. There’s even the elusive spinner white decorative sapphire—a chic alternative to traditional neutrals.

Sapphire vs Diamond: Durability on the Mohs Scale

On the Mohs scale, sapphire scores a 9, while diamond tops out at 10. That makes sapphires hard enough for daily wear and tear, yet still full of warmth and depth. If diamonds are ice, sapphires are fire under control.

Cultural and Historical Significance

From ancient temples to royal tiaras, sapphires have always been more than just accessories—they’ve been statements. Worn by high priests, monarchs, mystics, and modern icons alike, sapphires are among the most storied gemstones in human history. Their deep celestial hues have been linked to everything from divine wisdom to protection against evil. If diamonds represent brilliance, sapphire is the gem of depth and soul.

Let’s travel through time and glittering geography to explore the sapphires that shaped the legends—and stole the limelight.

The Star of India and Other Famous Sapphires

The Star of India, housed in the American Museum of Natural History, is a 563-carat marvel known for its asterism—a star-like reflection across its surface. But it’s far from the only sapphire with a story. These stones have been prized in royal treasuries, sacred temples, and museum collections across the world.

Prince William’s Engagement Ring & Royal Blue Legacy

Perhaps the most talked-about sapphire in recent history? The sapphire engagement ring worn by Kate Middleton, originally belonging to Princess Diana. Chosen by Prince William, it features a 12-carat blue sapphire surrounded by diamonds—and it redefined bridal jewelry forever.

Sappheiros and the Ten Commandments: Biblical Links

Some scholars believe the Ten Commandments were carved from sapphire tablets. Others link the word “sapphire” to sappheiros, possibly referring to lapis lazuli in early Hebrew texts. Either way, the gem’s spiritual ties run deep.

Healing Powers and Symbolism Through the Ages

For centuries, sapphires have been credited with healing powers—from curing illness to bringing clarity of thought. In medieval times, the clergy wore them to symbolize heaven. Kings believed they would protect against envy and betrayal.

Today, they remain a symbol of purity, loyalty, and serenity.

What Does Sapphire Symbolize as a Birthstone?

Not all birthstones are created equal. Some are pretty. Others are powerful. But sapphire? Sapphire is poetic. As the September birthstone, it carries a weight of meaning that stretches across cultures and centuries. It’s more than a gem—it’s a mirror of the soul.

A Symbol of Wisdom, Loyalty, and Nobility

The sapphire birthstone is often seen as a mirror of inner strength. It represents wisdom and calm. It is believed to help one remain grounded, clear-headed, and honest in word and deed.

What It Means If You Were Born in September

If you were born in September, you are associated with qualities like patience, depth, and resilience. The sapphire’s cooling blue mirrors your grounded energy—and its durability mirrors your quiet strength.

Personality Traits Associated With Sapphire Wearers

Sapphires are often chosen by those who value authenticity and timelessness. Sapphire lovers tend to be thoughtful, introspective, and elegant without trying too hard. They’re the kind of people who wear heirlooms effortlessly—and don’t mind if the jewelry has a little history.

Where Are Sapphires Found?

Sapphires may seem like they’ve fallen straight from the sky—and in some ways, their origins are just as magical. While we often admire their brilliance in boutiques and engagement rings, few stop to ask where these luminous stones actually come from. The answer? All over the world, but only a few places produce the truly unforgettable ones.

Sri Lanka, Kashmir, and Myanmar: The Big Three

The most legendary sapphires are found in Sri Lanka, Kashmir, and Myanmar. These three locales produce gems of incredible quality, with Sri Lankan sapphires being especially known for their light blue brilliance.

The Rise of Sri Lankan Sapphires in Fine Jewelry

Sri Lanka has become a world leader in ethical sourcing and gemstone cutting. Whether you're looking for a bespoke ring or a collector's piece, Sri Lankan sapphires offer an unmatched blend of quality and craftsmanship.

Want to see what that looks like? Arte Oro’s sapphire rings in Singapore are a dazzling place to start.

Sapphire Jewelry in the United States and Beyond

In the United States, sapphire jewelry is on the rise—especially as more people look for alternatives to the traditional diamond engagement ring or generic birthstone pendants.

Caring for Your Sapphire Jewelry

A sapphire is a jewel of legacy, meant not just to be worn, but to be cherished, passed down, and admired across generations. But like any great heirloom, it deserves proper care. Whether you wear your sapphire ring daily or reserve it for special occasions, understanding how to maintain its luster is key to preserving its timeless elegance.

How Hard Is Sapphire? (Durability & Mohs Scale)

As we mentioned, sapphire is incredibly tough, just below diamond. It can withstand daily wear and is a smart choice for rings, earrings, and any piece meant to be worn often.

Heat Treatment and Enhancements Explained

Most commercial sapphires have undergone heat treatment to enhance color and clarity. It’s a common, stable process that doesn’t devalue the gem. Always ask your jeweler for full disclosure.

Cleaning and Storing Tips for Long-Term Sparkle

• Use warm water, mild soap, and a soft brush.

• Avoid storing with softer gems—they may scratch.

• For a deep clean, professional polishing is recommended once a year.

Sapphire in Modern Fashion and Gifting

From runways to red carpets, sapphire has transcended its ancient roots to become a modern icon in both fashion and meaningful gifting.

Sapphire Engagement Rings and Their Rising Popularity

Move over, diamond—the sapphire engagement ring is having a moment. Modern brides are embracing color, meaning, and timeless appeal over trend. And let’s be honest, that deep blue just photographs so well.

The Best Birthstone Gifts for September Babies

A sapphire ring, bracelet, or necklace makes a beautiful birthstone gift. Whether it’s for a milestone birthday or simply because, it’s a gift with gravitas.

Sapphire Jewelry vs Other Birthstones: How It Compares

Sure, the garnet birthstone (January) and emerald (May) are stunning—but sapphire is one of the most versatile, durable, and storied gems out there. It’s the perfect blend of old-world charm and modern elegance.

Conclusion

So, to return to your original question: Sapphire is what birthstone? The answer is simple—the September birthstone, and possibly the most enchanting of them all.

Whether you’re drawn to its vibrant color, royal history, or symbolic depth, the sapphire is so much more than a beautiful stone—it’s a statement.

Ready to make it yours? Explore the fine collection at Arte Oro—where elegance meets storytelling, one gem at a time.